Software Development - 101

LCD Plasma TV Madness - How Has It Progressed To This Point

2008-10-03T00:17:00.005-07:00

Have you jumped into the latest craze to hit the television market? Perhaps you do not know what the "craze" is and are still using an outdated Telly. Either way, it is time for a little education on a LCD plasma TV. They are slim, offer great sound and the picture is phenomenal. It is a clear, sharp image that cannot even be compared to the images found on the older boob tubes. You have got to see it to believe it!

Whether you purchase a Samsung TV or a Sony HDTV plasma television, you are part of a growing trend. Many people are trading in their old, bulky television sets in favor of the new slimmer models. Remember those big screen televisions that took up most of the living room? Forget about those archaic relics! They offered up distorted pictures and faded colors. LCD and plasma televisions blast those antiques away by offering up new technology that spares owners the distortion. Monday night football never looked so good when viewed on this new phenomenon.

Okay, so an LCD plasma TV is a bit more expensive than what you paid for your old telly. However, if you remember back, then you may realize that the price differences are pretty small. At the time, larger screen televisions could easily sell for $500. Today you can own flat screen televisions for as little as $628 if you catch them on sale. Wal-Mart offers an RCA LCD HDTV for that price. It is 32" and has a built-in DVD player. You're getting a two for one deal.

Some people do not believe in buying their products or merchandise at big name retail stores because they want to support their local businesses. This is commendable and there needs to be a concerted effort to save local businesses. However, the downfall of shopping at local "Mom and Pop" stores is that they may not have the selection you want and if they do have the right Samsung TV or Panasonic plasma TV, then you are going to pay more.

Get rid of that dull old television set that is taking up so much room! An LCD plasma TV will change how you watch movies or play video games. You can go a step farther by purchasing cable or satellite packages that offer HDTV. The difference between regular cable or satellite and high definition is astonishing. Jump into the craze and see what you have been missing.

Having a big television is not always what it is cracked up to be. Those big monstrosities that take up so much room but deliver horrible picture quality and sound are out. You need to get with the times and get yourself a plasma TV. There are plenty of plasma televisions to choose from. You can opt for a 42" and hang it on your wall. You can have a 52" that resonates with beautiful picture quality and sound. The choices are up to you and you can find anything you are looking for by clicking here: Lg Electronics Plasma Flat Tv and at Plasma Tv Guide

Rapid Prototyping Disadvantages

2008-10-03T00:17:00.003-07:00

Prototype

Rapid Prototyping is a process wherein a working model or prototype is developed for the purpose of testing the various product features like design, ideas, features, functionality, performance and output. This process of development of working model is quite quick. Early Feedback is one thing that the user can give towards the prototype. Rapid prototyping is, generally, a significant and essential part of the system designing process and it is believed to decrease the project cost and risk.

The prototype that is developed by the process of rapid prototyping is based on the performance of earlier designs. Hence, it is possible to correct the defects or problems in the design by taking corrective measures. After you have made sure that the prototype meets every single requirement of the specific design then the product can be produces. There are many advantages of rapid prototyping.

Rapid Prototyping –Advantages in brief: Rapid prototyping has manifold advantages. It can provide with concept proof that would be required for attracting funds. The prototype gives the user a fair idea about the final look of the product. Rapid prototyping can enhance the early visibility. Whats nice about the developmental stage is that you can find really early flaws in the design that can be easier to fix. You really want to see a lot of participation with the user and producer in order to make the most out of rapid prototyping. Rapid Prototyping becomes popular when you start to see how cost effective it can be. A higher output is what the user can get.

The deficiencies in the earlier prototypes can be detected and rectified in time. The speed of system development is increased. It is possible to get immediate feedback from the user. There is better communication between the user and designer as the requirement sand expectations are expressed in the beginning itself. High quality product is easily delivered by way of rapid prototyping. Invention Prototype enables development time and costs. There are many innovative ways in which rapid prototyping can be used.

Despite all these benefits, there are many people who believe that there are many disadvantages of rapid prototyping.

Disadvantages of Prototyping : Some people are of the opinion that rapid prototyping is not effective because, in actual, it fails in replication of the real product or system. It could so happen that some important developmental steps could be omitted to get a quick and cheap working model. As you can see with rapid prototyping this could be one of the biggest disadvantages. Another disadvantage of rapid prototyping is one in which many problems are overlooked resulting in endless rectifications and revisions. The best solution in a large sized application may not be the best situation possible for rapid prototyping.

The user may have very high expectations about the prototype’s performance and the designer is unable to deliver these. The system could be left unfinished due to various reasons or the system may be implemented before it is completely ready. The producer may produce an inadequate system that is unable to meet the overall demands of the organization. Too much involvement of the user might hamper the optimization of the program. The producer may be too attached to the program of rapid prototyping, thus it may lead to legal involvement.

The cost reduction benefit of rapid prototyping also seems to be debatable, as sufficient details regarding the calculation basis and assumptions are not substantial.

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Prototyping Advantages and the process of Rapid Prototyping

2008-10-03T00:17:00.001-07:00

Electronic Prototype

Invention Prototype is a process of software development wherein physical objects are automatically constructed by means of SFF or solid freeform fabrication. In the process of rapid prototyping, a prototype or working model can be constructed quickly, and tested for its functionality, performance and output. The new features or ideas can be illustrated well in the prototype and early user feedback can be gathered with regards to the product. There are numerous advantages of rapid prototyping.

Benefits of Prototyping : Significant advantages of rapid prototyping include reduction of project cost and risk. Generally, one or more prototypes are developed in the process of software development in a series of incremental and iterative steps. Every prototype that is manufactured is based on the previous designs’ performance and it is a corrective process through which the past design defects or problems are corrected. The product is readied for production when the prototype is refined as per requirements and meets all the design goals like manufacturability, robustness and functionality.

Another great advantage of rapid prototyping is that it finds use and application in almost all the industries. The other advantages of rapid prototyping include the following.

Visualization capabilities are enhanced in the early designing phase with use of Invention Prototype . The user gets a fair idea of how the final product will look by observing the working model in early design stage.
The design flaws can be detected before manufacture process is initiated.
Active participation by all of the parties involved is one of the things that rapid prototyping enables. Active participation between the users and producer is encouraged.
The user is able to get a higher output.
Rapid Prototyping helps with reducing the costs of product development which is why its so popular.
Rapid prototyping increases the speed of system development.
With rapid prototyping, it is possible to detect deficiencies in the earlier prototype, coding activities and requirement analysis.
Rapid prototyping assists in refining the potential risks that are involved in the delivery
The different aspects of the prototype can be tried and tested and immediate feedback is possible form user.
Better communication is enabled between the users and designer as there is clear expression of requirements and expectations in the start itself.
Rapid prototyping enables easy delivery of high quality product.

Saving of Time and Cost: Rapid Prototypings biggest benefits are that is will save a lot of developmental costs and tons of time in the developmental costs. Time can be saved by reducing the amount of time required to produce the prototype parts and tooling. Production costs are lowered as the mistakes regarding tooling are identified in the early stages and hence, the modification costs can be cut down in the actual production.

Advantage of Innovation: Rapid prototyping can be used in many innovative ways. There are even more benefits from rapid prototyping other than these and the possibilities are endless. The advantages of rapid prototyping in innovative applications are advancement of new testing procedures and analysis, production tooling manufacture, improved communications across production departments and support of customized manufacturing. The new technologies can be used in a cost effective and successful manner with innovative applications of rapid prototyping.

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Finding Careers In Computer Animation.

2008-10-02T08:19:00.009-07:00

Nowadays, there are more ways to find careers in computer animation than ever before. Back before the age of cheap and powerful computers, animation careers were hard to come by. The equipment needed was extremely expensive, the technical expertise requirements were very demanding, and the job was time-consuming. For these reasons, becoming a professional animator was difficult. There were few jobs, and it was a difficult field to break into. It was such a time consuming occupation, after all, that it was almost impossible for private individuals to make their own animations in their spare time.

Computer generated animation changed all that. Nowadays, careers in computer animation are readily available to anyone who wants to take the time to study. There are many different ways to go about it. The most accepted way to try to get a career in computer animation is still to go to a respected animation school. There are plenty of art schools out there with excellent animation programs. Some of them focus more on computer animated cartoons, while others have a bigger emphasis on traditional styles. Either type of program will get you where you need to go.

Of course, many careers in computer animation start off with experimentation at home. Anyone can learn to program flash animations, and some of the effects people get are pretty good. Animating your own cartoons is a great way to build up a portfolio and get your work seen. Once you get a following, you can use that to get hired by a computer animation studio. Alternately, you can keep working for yourself. Many careers in computer animation, after all, take place completely on the Internet.

Still, it can't hurt to have a career plan ñ particularly if you don't already have a way to make a living. This is why going to an animation school is the most widely practiced way of getting a career in computer animation. There are so many people who have the skills that animation industry companies can afford to rule out anyone who doesn't have the credentials without even giving them a second chance. If you can't get your foot in the door, you will never become eligible for any of the best careers in computer animation. Going to animation school will give you a broad-based educational program which will teach you a lot more than you could easily learn on your own. All in all, going to a school for animation makes a lot of sense.

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Buying A Desktop Computer Package Will Save Money

2008-10-02T08:19:00.007-07:00

Buying a Desktop Computer Package

A desktop computer package is the most cost effective method of finding the best desktop computer deals. The buyer will get everything needed which usually includes the tower, the monitor, keyboard, and mouse and sometimes even a free printer.

There are many things to consider when looking into a new computer such as the brand are you leaning towards and what will you be using the computer for. Reading the list below can help with the decision making process in the purchase of a desktop computer package:

Type of Computer

Both Windows and Macintosh offer custom desktop computers. If you don't like change it may be best to stay with whatever system you feel most comfortable with. Much of the commonly used software was originally created to be used with Windows. Most all of that software has been tweaked to work with the Macintosh. Some like the Mac for the stability and lack of virus problems.

CPU

The CPU inside the tower is one the most critical choices you will have to make when putting together your desktop computer bundle. The Central Processing Unit will determine the speed with which your computer will process commands.

Read Access Memory

Then, the desktop computer package will offer RAM, which is the system's memory. With this, programs are able to run and information can be moved between the hard drive and functions of the program. For the best choice, buyers want to match RAM speed with the CPU speed.

Hard Drive

The hard drive capacity is important to consider when needing to store a lot of pictures, videos or detailed graphics. If you only using your computer to only write and store text data the capacity is less of a concern.

The Computer Screen

Computer monitors come with the best desktop computer deals. Typically, working with a lot of graphics would need a CRT type of monitor. However, most of the desktop computer bundle deals come with LCD monitors. The advantage here is that the monitor does not consume as much energy, have wider screen images, and work better for smaller spaces.

Keyboard and Mouse

A wireless keyboard and or mouse is not only convenient but allows a clean looking computer station. There are so many wires connecting all the components together it is hard to keep them neat and tidy. Visit a computer store to find the style, size and shape you prefer before making an online purchase.

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3D Rapid Prototyping Overseas and Global Prototyping Discussed

2008-10-02T08:19:00.005-07:00

Prototype Design

Global Sources Group: There are very few companies dealing with Rapid Prototyping overseas. One of them is Global Sources Group. It can boast of offering overseas rapid manufacturing. Today’s fast world speaks of competition. The US is no exception. In has been dominate throughout the globe since really the last cenury. This has led to the emergence of Global Sources Group. The customer would always feel obliged by seeking the services of Global Sources Group, as this would result in substantial increase in his productivity and profit. This company is associated with factories across Vietnam and China. Thus, the required competitive edge that is needed in market of today is ensured.

Global Sources Group has the ability of designing the Prototyping within 10 days. Not only that, the patent of the new product acquired can be obtained within 4 weeks. Here, time is equated with money. In reality, you would airfreight the products over seas so you still get fast productivity and overseas has very high quality factories. This would thus take the client to the subsequent level.

Global Sources Group assists companies in 3D Prototyping , right from design to manufacture. It specializes in manufacturing and ‘Art to Part Design’. You will find that this company has over 20 years of experience.

Delcam: Another company dealing with rapid prototyping overseas is Delcam. This company was established in 1968, when 3D modelling was not even talked of. 2D drawing was prevalent. Ford was really the first company that helped bring rapid prototyping into the 1980's. The process can be described as follows: Rapid Prototyping can be made effective if a good quality STL FILE is used. It is independent of composition. STL file, having property of water tightness can be exported by Power SHAPE. The errors can be automatically detected and repaired by a set of ‘wizards’. It provides the customer with total control over the creation of mesh. Whats nice is that the fast model from PowerSHAPE that carries out the repairing of the tools is also intuitive. This means that if the surfaces of original model of CAD are damaged or missing, the work won’t be stopped, i.e. the customer can easily carry out the fixation of model and go on with his work.

CopyCAD, Delcam’s software for reverse engineering, possesses comprehensive tools to repair and modify the STL models on an interactive basis. This enables the process chain to continue in an unbroken manner even if there is no CAD model to start with. Power MILL, Delcam’s absolute machining solution has the capacity of producing accurate tool paths. They can be built upto five axis-simultaneous, directly from the STL models. What is nice about this is that you will find that the manufacturing process wll become more flexible.

Delcam’s software is being tried and examined with majority of general Rapid Prototyping Systems, to produce both, prototype tooling and form-and-fit testing parts. Its constant involvement in projects of Europe like HiperMoulding and CARP ensures that the customer is guaranteed of results of high quality irrespective of the type of Rapid Prototyping System used. Delcam has been into news in terms of rapid prototyping for quite some time now.

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Prototype Development and Prototype Design

2008-10-02T08:19:00.003-07:00

Prototype Design

Designing and Prototype Design have revolutionized the manufacturing processes in all industries nearly. There is not a single industry or process that is untouched by the technology of designing and prototyping.

Designing: Designing is the process by which you will design a product in advance before actual production. Designing will help you to innovate, change, modify and invent. Designing involves the process of idea generation, conceptualizing and actual design development.

Prototyping: Prototyping is a process in which a working model or prototype is developed for the purpose of testing the various design aspects like features, ideas, viability, functionality, output and performance. The prototyping will help in getting a quick user feedback. Prototyping is considered to be an essential element of the process of system designing.

Designing and Prototyping go hand in hand, as both are complementary. In prototyping, new prototypes are developed on the basis of the performance of earlier designs. The deficiencies or problems in the previous designs can be detected and corrected. The prototype is redesigned after refinement and successfully meets the designing goals like functionality, manufacturability, performance and robustness. After this, the product can be readily produced.

Benefits of Designing and Rapid Prototyping : The scope of designing and prototyping is unlimited. Both have applications in all types of industries like CAD, CAM, automotive industry, workshops, fashion designing and innovative products and so on. With designing, you are able to create digital data in the form of 3D images and this digital data can be transformed into actual physical object by way of prototyping. You can visualize about how the final product will look. You can translate your inventions and innovative ideas in real terms with the help of designing and prototyping.

You may be toying with many innovative product ideas in your mind and you wish to convert them into realities. You can successfully develop your new invention from an idea to actual manufactured product with designing and prototyping. You can test your product by testing its commercial viability. You can have an open communication with the user regarding the expectations of the product and its performance. This will give you a fair idea regarding the designing and prototyping.

Appropriate Designing and Prototyping: If you want your invention or innovative product to be successful, then it needs to have a good design and there have to more additives than a plain good idea. The design should be such that it reduces the manufacturing costs. The design must have excellent functionality and it should be attractive as well along with the benefit of maximized durability. The designing and prototyping should work together to maximize the chances of success.

The best approach for an appropriate designing and prototyping plan, would be to design and create an eye-catching and working prototype along with good packaging. Necessary legal protection should be obtained. Engineering drawings should be produced and pricing data for manufacturing process should be generated. All the production facilities of the factory should be lined up. Take feedback from the end users and buyers and you will get an idea of the demand for your product. This appropriate designing and prototyping plan, is sure to spell success for you.

Keep Your PC Safe With A Web Firewall

2008-10-02T08:19:00.001-07:00

It is important to know how and why you should install a web firewall with the onslaught of computer hackers, scammers, and viruses that are prevalent around the Internet. Defense from malicious data harming your computer is provided by a web firewall. With one, you can avoid dangerous attacks that can wipe out your data or steal personal information.

Determine the type of web firewall required by your computer as there are a wide variety available. If you already have a computer that came installed with the Microsoft XP or Vista operating system, then chances are that your web firewall is already set up and ready to be used. It is no good if it is turned off or not working properly. Purchase your own software if you do not have one of these newer operating systems. You may want to purchase separate software to complement Microsoft XP as its version of web firewall doesn't get great reviews.

There are many products available, including as the most popular - Norton, AVG, and McAfee and you can either visit a store that sells computer software or download a web firewall product through the Internet. The price of software varies depending on how sophisticated it is but there are also plenty of low cost versions available, even from the big name companies. Prior to the installation of your web firewall, a few things must be taken into consideration. The program must not stop you using the functions that you need, such as file and printing sharing. Settings can be configured during installation or at a later date using the documentation provided.

Web firewalls tend to stop you from going to certain parts of the Internet as well. It is important that you are familiar with how you connect because this can happen if you use a local area network or a router. When you have installed a web firewall in place, secured networks in particular are difficult to access. Installing a web firewall to a pc linked to a company network may require a specific settings configuration to allow you to connect to them and this can be provided by a company's IT department.

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Xbox 360 Games Download – How To Download Xbox 360 Games Online

2008-10-01T18:49:00.011-07:00

Tired of the same old game that you play on your Xbox 360? Done with the same patterns and almost the same game that just changed the scenes? Well, today is the right time to discover new xbox 360 games and adventures you never encounter.

There are many ways to download xbox 360 games online that will surely fit your interests. You do not have to pay for large fees because some of the xbox 360 games downloads are very cheap. It will offer you non-stop action that will boost your adrenalin rush and let you feel that you are really into it. Almost all of the games are available for easy download anywhere you are so long as you are connected to the internet.

The Xbox 360 games download are in high resolution that will provide a clearer and better gaming experience. There are a few websites that I found allows you to download unlimited xbox 360 games for a one time low cost. They also provide updated news and patches so you will always on the top and always knowledgeable to the latest technological advancements especially in Xbox.

If you have any problems, the support system will be glad to serve you anytime of the day. So, never miss the fun and enjoyment that your Xbox offers. Be the first of the few people who discovered the secret on how to play xbox 360 games download on your gaming console. Be the top model for your friends and be the leader of the Xbox community.

I recommend you have a broadband connection to download the xbox 360 ISO files as most of them are quite large in size. I recommend at least a 1MB broadband or DSL line. Also, if your home has wireless connections, it will be better and faster to download the xbox 360 games directly to your xbox 360.

CRM Applications and Their Relevance

2008-10-01T18:49:00.009-07:00

CRM Software is the ultimate need is the ultimate need for every business. CRM Application allows an organization to automate the production proposal for their clients and prospects. CRM software organizes all aspects of the upcoming test, checks inventory for the testing supplies and even orders the materials needed for testing. CRM software is used to support these processes, storing information on customers and prospective customers. Information in the system can be accessed and entered by employees in different departments, such as sales , marketing , customer service , training , professional development , performance management, human resource development , and compensation .

CRM Software (Cusotmer Relationship Management) is the generic term for software that helps companies to maintain and improve the quality of their relationships with customers. By storing information about customers and prospective customers centrally, and distributing that information to all departments, all company representatives are able to see a complete view of the customer, irrespective of their particular role. CRM Software can be as basic as a simple database that holds the contact information, or you can use it to send email, direct mail, and postcards all on a set schedule. CRM Software is a tremendous tool for salespeople that are looking to take it to the next level. CRM software can help to move you beyond those limitations and put firm-wide management at your fingertips.

CRM software can also help you retain existing customers and gain new ones. Key elements of CRM allow a business to collect and maintain valuable data such as customer contacts and history of purchases; maintain profiles of customer preferences; improve customer communication channels; and identify new selling opportunities. CRM Software should be a salespersons best friend. It doesn't matter if you're a small business owner, working in a large organization, or an independent sales rep, a good contact management software is a necessary tool for you to keep your pipeline organized and full of qualified leads.

Customer Relationship Management Software can be a major undertaking, with the cost for many systems over several million dollars and the implementation period lasting a year or more. Before making a commitment like this, every business should ask if they require a full CRM Software program . Customer information acquired from sales, marketing, customer service, and support is captured and stored in a centralised database . The system may provide data-mining facilities that support an opportunity management system . Customized Software Applications continue to hold an important position in the software solutions chain even though there is an increasing shift towards packaged solutions. Business dynamics and growth will ensure that the requirements are always ahead of the available packages and hence the need for customized solutions.

Customer Relationship Management CRM software has played a very important role for large corporations in improving the efficiency and effectiveness of sales, marketing, and customer service. There have been both successes and failures in implementing these very expensive solutions.

Web based CRM enables the business owner to quick view marketing wins and losses. Track the success of multi-channel advertising efforts. CRM software's marketing functionality needs to promote new product or a service through multiple channels with unified message. Where the marketing functionality leaves off by creating leads, sales force automation needs to pick up the thread seamlessly, from qualification to closure of such leads. CRM software provides the organization, management, delivery and automation to achieve the CRM strategy. Effective CRM software will facilitate the understanding, anticipating and responding to the needs of your customer in both an efficient and effective manner.

Learning Computer Aided Design/Computer Aided Manufacturing Basics

2008-10-01T18:49:00.007-07:00

cnc

You might hear the term CAD-CAM from time to time. It is basically a merging of the two pieces. A software manufacturer tries to pick up more marketshare by doing this. They also keep you locking into their “system” by going with the whole package at once.

A lot of the time, this is a good thing. Same or similar interface on both pieces of software. Quick flow between pieces and easy file management. You have to evaluate it for yourself though. There are many times in life where two or more tools are combined to produce a less then stellar result.

CAD/CAM Article
Here is an article I pulled up that describes the past and future direction of CAD/CAM.I thought it was important as you hear these two terms used together all the time. They are two different and distinct parts of the process, but some software makers make both products and sell them together.

CAD/CAM: Past, Present and Future
By Katrina C. Arabe
Before CAD/CAM technology, drafts, calculations and product design involved pencil, paper and a seemingly endless succession of blueprints. CAD/CAM's ongoing enhancement has made the process easier, but with the latest slew of features, some users actually find less is more.
Virtually every manmade product has been designed and manufactured using a CAD/CAM program. CAD/CAM, or Computer Aided Design/Computer Aided Manufacturing, is utilized in every facet of industry; from designing phones to plotting out toolpaths in die and mold shops. Although the users of CAD/CAM technology may, at times, feel frustrated by how often its software is updated, the fact is that CAD/CAM has close to five decades of history stretching almost as far back as the computer.

CAD/CAM, like the digital computer, had its inception in the military. In the mid-1950s the U.S. Air Force began testing an air defense system known as SAGE (Semi Automatic Ground Environment) to graphically depict data received on radar systems. The first computer actually rendering a program, SAGE was conceived at the Massachusetts Institute of Technology (MIT). In 1960, computer scientists at MIT produced yet another project called Sketchpad, an application that is now considered to be the first design program with industrial use. A similar program sprouted up at General Motors soon after. At that time, mainframes were still large enough to take up entire rooms.

During the 1960's CAD/CAM technology continued to evolve and spread to other areas. Automotive companies were the first to adopt the technology, and used it primarily to design automobile bodies. It then quickly spread to other sectors of industry, which were only too eager to abandon traditional pen and paper methods of drafting. By 1973, CAD/CAM was being used to design industrial tools. Midway through the decade, the 19-inch monitor came out, which meant that drawings could be viewed larger than the previous standard of 11 inches. In the last half of the 70's, solid modeling software became available. It allowed users to take "geometric primitives" (basic geometric shapes such as boxes and cones) and combine them using Boolean operations. In 1982, Autodesk made CAD/CAM history when it released the first version of AutoCAD, which soon became the premiere software platform for automobile design.
At times, the history of CAD/CAM seems like the plot of a spy novel. In 1984, a Hungarian scientist named Gabor Bajor, succeeded in smuggling two Macintosh computers into his Communist-controlled homeland. With the intent of writing a 3D CAD program, Bajor and his teenage assistant used the illegal computers to create just that program, and started the Graphsoft Company. In 1985, Diehl Graphsoft introduced MiniCAD to the market, which would be considered the industry standard for CAD on the Mac. The same year Autodesk unveiled AutoCAD 2.1. Complete with 3D capabilities, AutoCAD 2.1 was another breakthrough that transformed design in the auto industry. In the late 80's and early 90's, CAD/CAM giant Unigraphics took its place as a major industry player by partnering with industry powerhouses such as General Motors, UNIX, GE and Boeing.

During the early 1990s, Unigraphics introduced hybrid modeling, which featured both traditional modeling and advanced parametric techniques. By the end of 1994, over one million units of AutoCAD had been sold, and by the end of 1995, there were about 350,000 users of generic CAD/CAM reported worldwide. In 1996, General Motors signed the largest contract in CAD/CAM's history by selecting Unigraphics as its sole vendor for vehicle development software. Soon afterwards, Unigraphics would once again transform the medium by releasing CAD/CAM software that allowed for the definition, control and evaluation of product templates. Another major advance in CAD/CAM occurred IN 1999 when Think3, a "Johnny-come-lately" to the world of CAD/CAM, introduced the first mechanical design software that could fully combine the power of parametric solids, advanced surfacing, wireframe and two-dimensional drafting on the desktop in one environment. Subsequently, a plethora of software vendors has surfaced, inundating the market with competing CAD/CAM platforms AND causing designers to be alternately pleased and confused by the sheer number of options available to them.

At present, CAD/CAM continues its steady path of progress. Much of this progress is in the form of refining past innovations to make them more efficient and user friendly. A groundbreaking CAD/CAM innovation has not occurred for a number of years, which seems to indicate that another sweeping change is just around the corner -- or maybe not. Despite the advent of 3D CAD/CAM, many CAD/CAM users still prefer to render designs in 2D. Thus, recent 3D innovations such as animated "walk-throughs" (a technique that allows designers to visually move in and around the rendered model, and see it from every possible angle) are still largely underused. The same is true of the bevy of collaboration tools currently available to the CAD/CAM user. The ability to combine CAD/CAM, with finite-element analysis and the accessibility of simulation and knowledge management, has yet to be fully embraced. Perhaps, it is in one of these areas that the next CAD/CAM breakthrough will occur. One thing that can be said with a degree of certainty is that research and development are currently ahead of user demand. When, and if, the garden-variety CAD/CAM user decides that they need to expand their range of capabilities, they will find a world of cutting-edge CAD/CAM tools at their disposal.

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Prototype Services, Rotocast, 3D Cad, and 3D Printing

2008-10-01T18:49:00.005-07:00

Rapid Prototype

Since Prototyping came into being, many businesses provided with the service of prototype development. Earlier, such companies were known as service bureaus and they allowed the users to access the unproven and expensive technology. In the early period of rapid prototyping, these service bureaus provided with advantages of Rapid Prototyping development minus the soaring upfront expenses and major risks of applying a new technology that was relatively unverified and hovering on the brink of rapid obsolescence. In the beginning, the service bureaus provided file conversions for narrowing the operational gap amidst 2D data and 3D CAD models. Due to this, the large companies that had not yet transitioned to solid modeling were benefited greatly.

As the technology of rapid prototyping progressed, most of the service bureaus have undergone role modifications and they promise to deliver greater advantages beyond initial expense reduction and ownership risk. There are several companies worldwide offering the rapid prototyping services.

Advantages of Rapid Prototype Services: The advantages of rapid prototyping services are by far many. The rapid prototyping services provide advanced rapid prototyping technologies. You can get a competitive edge in the process of product development, so that the product is marketed much faster. The rapid prototyping services allow the users and producers to achieve the designing and prototyping goals. The innovative product idea can be successfully realized into actual product of high quality with the help of rapid prototyping services. The rapid prototyping services deliver the finished product beginning from the product idea, conceptualization and prototype development. You can save money and time as well, as rapid prototyping allows the production on low volume basis directly from the designing data.

Rapid Prototyping Services: The various types of rapid prototyping services include technologies like stereolithography prototype, polyjet 3D printing, selective laser sintering, rapid tooling, 3D CAD modeling, RTV molding, RotoCAST, machined castings, urethane castings, injection molding, high temperature castings, rapid prototyping machines, investment casting, electroplating, functional prototype development, 3D modeling and development of patterns and models.

The rapid prototyping service provider will develop prototypes as per the required specifications of the manufactures. Things that this will supply you are prototype development, supplies and materials, and of course components. The various materials utilized in the process of rapid prototyping are plastics, metals and elastomers. The product development process is accelerated with supply of quick, robust and accurate prototypes by the rapid prototyping services.

Prototype Zone is a new community website all about Rapid Prototyping. Stop Around Prototype Zone today to get your free reference guide on Rapid Prototyping just for signing up today and join the site for free and you get a free Rapid Prototyping Basics EBook just for signing up! Visit the website today to sign up for free so you can then download your free book on Basic Rapid Prototyping.Com right now to get your Free Ebook that is all about Rapid Prototyping and Rapid Prototyping Basics for Free.

It's not always Easy to Remove Smitfraud

2008-10-01T18:49:00.003-07:00

Smitfraud as you most likely already know is a virus.Here are some of the things Smitfraud can do. There are many different variations of this virus but most of them do two things. The first is change your desktop background around and make it so you can not change it back. The second highjacks your home page and constantly re-directs you to other sites. For full removal instructions head over to this dedicated Smitfraud Removal site.

While many current anti-virus and anti-spyware programs detect Smitfraud most can not fully remove this strain. It ha traces in the registry and several other hard to edit places. If you miss one trace chances are you will get infected again. That is why this is so hard to remove.

Many repair site specialize in removing Viruses. The cost will vary with who you choose but if you have your computer repaired online it will cut that cost in half. Places like this Computer Repair shop do a great job and for much less then you think. They remote into your computer using screen sharing software and you can watch them work. It’s just like having a personal tech onsite but without the high cost.They also feature a free chat with a pro.

Smitfraud can be fully remove using several free programs on the internet. The problem is do you have the 7 to 16 hours to spend using free software to remove this? The other downside in using free software is it won’t protect your computer from getting infected again. Free clients do not offer upfront protection. It’s only after you have been infected that they start to kicking and by that time it is often too late. Don’t be cheap and fall prey to another virus. Consider paying the 40 or so dollars a year and protect your computer so you do not have to deal with this issue again.

What is the right CAD program for me?

2008-10-01T18:49:00.001-07:00

computer aided design

There are multiple Computer Aided Design Softwares available for design. Generally people become familiar with one and stick with it. As far as selecting the right one, my advice is this. Most software companies have a free trial.30 day software trials are the standard. Take advantage of these trial periods and test the software out. Then at the end, decide if you want to try another software or stick with your best one. I would advise you try out at least three different packages.

The one you select will probably have to do with you liking the interface or finding it intuitive. Keep in mind it may work for you now. A simple to use and understand interface probably has some limitations for your designs. The very best programs are complex with many tools that give you the most control. I have found that I start with a simple program and outgrow it. At some point I move up to the next level of software. This usually means a higher price as well.

Tools in CAD
Inside of your CAD program, you will have various tools that you can work with. Many of these tools speed up your design times and make you more efficient.Each computer-aided design program will have tools, and then some unique tools that are only available with their specific software package. These specialty tools are one of the ways software manufacturers differentiate themselves in the marketplace.

Versions of computer aided design
There are different types of computer aided design out in the marketplace. These are the ones I deal with from time to time. 2D CAD, 2.5D CAD, and Three Dimensional CAD.Here are some fast explanations of each computer aided design type.

2D CAD
2D CAD is generally on the low end of CAD software packages. 2D CAD is most often vector based. The design consists on the X and Y-axis only. The designs are made up of lines, circles, ovals, slots, curves, etc. There is no “depth” to the design. Only the outline of the part is visible, to put it in a different way.

2.5D CAD
All of the same descriptions above apply, but the design is prismatic. By that I mean it has the depth of the material. There are Z levels, but they are on singular planes.

3D CAD
3D CAD is on the high end of CAD software packages. 3D CAD can be solid based, wire frame based or nurbs based. The design consists on the X, Y and Z-axis. The designs are made up of lines, circles, ovals, slots, curves, etc, but can also include Spheres, Pyramids, Torrids, Cubes, etc.There is a depth to the CNC design. The design can be rotated around 360 degrees. The design is an accurate description of what the part would look like if produced in the real world.

CNC Information Free Community Site:
If you would like to know more about CNC, head on over to http://www.cncinformation.com
You can join it today and get two free CNC eBooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

Methods of Selective Laser Sintering

2008-09-30T10:05:00.005-07:00

Prototyping

Rapid Prototyping or SLS is said to be a free-form manufacturing technology which is developed by 3D systems. SLS is a method of layered manufacturing which creates a solid 3D object by blending powdered substances along with carbon dioxide. In other words SLS is one of the famous mechanisms of Rapid Prototyping in which a laser beam carefully sinters or fuses the powdered substances such as elastomer, nylon etc. A thin layer of that powdered substances is being laid down and the laser sketches on the layer sintering together the elements hit by the laser. SLS can provide a persons manufacturing company with most important perimeter by producing metal or rapid plastic prototyping which narrowly matches their molded complements.

Stereolithography V/S Selective Laser Sintering: One of the foremost benefits of Selective Laser Sintering over Stereolithography is that it constructs prototypes in powered materials such as nylon etc. It is likely to create structurally useful parts like functioning springs, living hinges and snap fit components along with nylon substances by utilizing Selective Laser Sintering. This procedure is actually very easy as there is no need of tooling or molding involved. You will find that the nylon substance that is useding during the SLS process can be machined and drilled just like you can in SLA. These substances are fragile as they are curved with Ultra Violet light and created with liquid photopolymers.

Since it has been introduced by DR Carl Deckard in the year 1989, this SLS technology has become one of the most recognized and utilized procedures for product development and rapid prototyping in most of the manufacturing industries. Rapid Prototyping technology has also become one of the most trusted and reliable forms of rapid prototyping due to its structural importance. SLS is generally helpful when a particular design has to be customized or is complex and requires being short run or functional production.

Procedure: In the procedure of Selective Laser Sintering or Selective Laser Sintering, three dimensional parts are formed when an infrared laser beam fuses or sinters powdered substances. The ultimate object is being formed by continually sintering or fusing those thin layers by utilizing the infrared laser beam. This particular procedure is also known as additive manufacturing, creating parts which regularly enhances in size until it reaches the arranged size. These rapid prototypes are formed directly from the STL file acquired from three dimensional CAD models.

One of the most important features of Selective Laser Sintering is how functional and durable the substances are. These substances normally include versions of new DuraForm glass-filled, which is a nylon based substance that creates functional and highly durable plastic prototypes. LaserForm, Flex Plastic, and Rubber like parts that create metal prototypes are some of the other substances available with SLS.

Benefits: Lots of people are trying hard to get some of these new SLS substances into the manufacturing market. Whats nice about thses substances is that after they are created, they need no post processing methods so you get another advantage over SLA. However, this does not mean that these substances cannot be developed. There are good things about the SLS substances we have mentioned because they all can be completed in many methods. They can be machined, painted, tapped, drilled and even plated. This allows for a superior grade of manifestation to these substances therefore giving the users a limitless potential to utilize these substances.

Prototype Zone is a new community website all about Rapid Prototyping. Come by Prototypezone today and join the site for free and you get a free Rapid Prototyping Basics EBook just for signing up! Come by Prototypezone.Com right away to receive your own Ebook on Rapid Prototyping Basics for Free.

3D Scanner, 3D Scanning, and 3D Scanners along with technology for 3D Scanners

2008-09-30T10:05:00.003-07:00

Prototyping Design

Prototyping can be defined as the process wherein a device’s, object’s, or system’s technological principles are discovered by analyzing its operation, function, and structure. It often refers to detaching something, say- a software program, electronic equipment, or mechanical device and carrying out the analysis of its workability in detail. This is done in order to manufacture a new program or device which performs the same function without doubling anything from original.

Motivation: Reasons behind the emergence of reverse engineering include interoperability, lost documentation which means loss or non-existence of documentation of the concerned device, product analysis, security auditing, exclusion of protection of copy, circumvention of restrictions regarding access, and fraud.

Prototyping of ‘mechanical devices’ : With the ever-increasing popularity of CAD, ‘reverse engineering’ has proven to be a blessing for creation of ‘3D virtual model’ of the on hand physical part to be used in 3D CAE, CAM, CAD and many other soft wares. The measuring of physical object can be done by making use of ‘#D scanning technologies’ such as computed tomography, ‘structured light digitizers’, laser scanners, and CMMs. The data that is measured usually gets represented as ‘point cloud’. It is devoid of topological information. That’s why, the processing and modelling takes place into usable format like a ‘triangular faced mesh’, CAD model, or a collection of surfaces of NURBS. Applications such as Polyworks, Image ware, Geomagic, or Rapidform are used for processing the ‘point clouds’ into the formats that can be used in applications like 3D CAE, CAM, CAD or visualization.

Reverse Engineering of ‘software’ : The term ‘reverse engineering’ differs from person to person when applied in terms of software. Reverse engineering is a bit complicated but simply it is the process that involved looking at the subject system in order to create its representation at the higher level. There are people out there that will call this level the level of abstraction. As far as software is concerned, reverse engineering can be described as an examination process only. Really if you look at things from the software point of view there is no modification needed. The use of ‘software anti-tamper technology’ takes place in order to deter reengineering and reverse engineering of the software-powered systems and proprietary software.

Two major reverse engineering types exist in the present scenario. In the first type, source code is available, but program’s greater level aspects are poorly documented or invalidated. In the second type, source code does not exist. Any efforts made in this direction would be termed as ‘reverse engineering’. The 2nd use is that which majority of people know. ‘Reverse Engineering of software’ is implied at making use of ‘clean room design’ technique for avoiding infringing copyrights. In today’s world, around 95% of reverse engineering consists of ‘reverse engineering of software’.

On the other hand, ‘black box testing’ in ‘software engineering’ has many similarities to reverse engineering. The tester normally possesses the API. However, their main goal is to locate undocumented features and bugs by smashing the products from the outside. This process is used for customizing the embedded systems as well.

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Flexible Manufacturing, Rapid Manufacturing, Direct Manufacturing

2008-09-30T10:05:00.001-07:00

Flexible Manufacturing

Rapid Manufacturing can be described as an ‘Additive Fabrication Technique’ to manufacture solid objects through the chronological delivery of material and/or energy to precise points in the space for producing that part. At present, the practice of controlling the process of manufacturing with the help of computer by making use of mathematical model that has been created through the computer’s aid is being followed. Rapid manufacturing, if done with the help of Parallel Batch Production is capable of providing a huge advantage in terms of cost and speed in comparison with alternative techniques of manufacturing like die casting or Plastic Injection Molding.

Origin: Prototyping process was first demonstrated at The AUTO FACT show. The venue was Detroit, MI. The year was 1987. A company called 3D Systems Company is who created this technique. The technologies available now are inclusive of processes such as Laminated Object Manufacturing, Shape Deposition Manufacturing, and Selective Laser Sintering.

The present scenario: Prototyping might involve replacement parts, custom parts, series production, or Short Run Production. This process can be referred to as Rapid Prototyping only if the use of the part is for development. Rapid Manufacturing carried out for big products with Layer-based Manufacturing from composite materials, plastics, or metals is widely used for numerous industrial applications pertaining to aerospace (Boeing) and military (MPH-Optomec) sectors. Micro system applications and small products are well known in medicines, sensor technologies (micro TEC), and diagnostics. Batch production regarding tiny parts by techniques of rapid manufacturing like RMPD give vent to advantages related to time and cost.

Now days, collectibles, consumer products, orthodontics, dentistry, jewelry, motor sports, and automotives are being experimented with rapid manufacturing. Amazing results are expected in future. The world economy is becoming competitive day by day. As customer demands have increase, manufacturers everywhere are tyring to deliver customized products faster than ever before. A late delivery or development might could mean failure of business. Rapid manufacturing has been devised with the objective of shortening the production cycle and design, and promising to revolutionize the age-old manufacturing procedures.

The initial process: Before starting with the construction of product, a prototype or sample is required quite often as a portion of design cycle, for allowing evaluation, testing, or demonstration of proposed product. This process is iterative, as a chain of prototypes gets built up. One way that prototypes can be used is for testing and loking at various options.

Rapid Manufacturing is also inclusive of rapid application of tools needed for production on a large scale, like jigs, dies, and specially shaped molds. Several Layer manufacturing Processes are being developed now, by making use of a wide range of materials. These parts are extremely durable and have proved to be strong as well. The size has also been increasing. Due to all these successes, layer manufacturing is the most sought after technique for fabricating the parts for functional prototypes as well as production tools. Rapid Tooling is where you apply layer manufacturing for making components that are used in production. It is being applied to investment casting, injection molding, and many processes related to mold casting.

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Techniques for Additive Fabrication

2008-09-30T10:04:00.003-07:00

prototyping

Rapid Prototyping can be defined as an assortment of techniques of making solid objects through the chronological delivery of material and/or energy to specific points in the space for production of that solid. Additive fabrication is also known as solid freeform fabrication, layered manufacturing, rapid manufacturing, and rapid prototyping.

Techniques: Additive fabrication is carried out using a number of techniques. Let some of them be studied in detail.

‘Electron Beam Melting’: EBM (Electronic Beam Melting) can be described as the ‘rapid prototyping’ for metals. It is better known as Additive Fabrication method. The parts are manufactured by having the metal powder melted layer by layer through a beam of electron in high vacuum. The parts produced acquire strength, solidity, and are void-free as well. The electrons have a very high speed; around 5 to 8 times the light speed. The bombardment of these electrons takes place on the work material’s surface. What happens is that this creates a lot of heat that is enough for melting the part's surface and causing it to locatlly vaporize. Vacuum is required for the operation of EBM. This means that the size of work piece is directly proportional to vacuum used. You will find that this technique works not only on metals but also on composites, ceramics, and non-metals.

Fused Deposition Modeling: Fused Deposition Modeling (FDM) can be described as a kind of rapid manufacturing (RP) or rapid prototyping technology which is generally used in engineering design. S.Scott Crump had founded this technology in 1980s. It caught the commercial market in 1990. Like most of the RP processes, the principle of working of FDM is the ‘additive principle’. The material, in this case, will need to be laid down in layers. The metal wire or plastic filament is then unwound and material is supplied through it to the extrusion nozzle that can turn off and on the flow.

The nozzle’ then is heated for melting the material. It could be moved in vertical and horizontal directions with the help of a mechanism which is numerically controlled. This numerical control is obtained through ‘Computer Aided Design’ software package. Like stereo lithography, the building of the model takes place from layers. This happens because the material starts hardening after getting extruded from nozzle.

Numerous materials are offered with diverse trade-offs between temperature and strength. One can use the Additive Fabrication with polycaprolactone, polycarbonates, polyphenylsulfones, and Acrylonitrile butadiene styrene (ABS). Temporary supports can be made by using a ‘water-soluble’ material. These supports are needed and need to be kept as the manufacturing is still going on. Servo or Stepper Motors are some of the prototypes that are made in commercial applications.

‘Selective Laser Sintering’: Selective Laser Sintering can be defined as an additive type of rapid manufacturing wherein a ‘high power laser’ (like carbon dioxide laser) is used for fusing tiny particles of ceramic, metal, or plastic powders into mass representing the desired three-dimensional object. In comparison to other methods of rapid manufacturing, ‘selective laser sintering’ has the capacity of producing parts from several powder materials available. They include polymers (polystyrene and nylon), metals (composites, alloy mixtures, titanium, steel), and not to forget- green sand. This physical process could be liquid-phase sintering, partial melting, or full melting.

3D Printer and 3D Printer Technologies discussion on the advances in 3D Prints

2008-09-30T10:04:00.001-07:00

3D Rapid Prototyping

3D Printing can be referred to as method of getting virtual 3D model printed onto a 2D object. Prototyping falls in the category of ‘rapid prototyping’ technology. The function typically performed by 3D printers is that of printing consecutive layers on the previous ones for building up a 3D object. It is easier, more affordable, and faster to use 3D printers as compared to other technologies related to additive fabrication.

Technologies: Initially, production of a prototype required a lot of man-hours, tools, and experienced labor. For instance, after designing a novel Street Light Luminaire digitally, drawings used to be sent to accomplished craftsmen where the paper design used to be followed with utmost pains and a Rapid Prototyping used to be formed in wood through the utilization of the entire shop that is full of costly tools and working machinery. One can easily make out that this process consumed a lot of time. Moreover, the skillful labor was not all that cheap. These shortcomings necessitated the need of rapid prototyping.

3D printing has a variation called Inkjet Printing System. It involves binding of fine powder layers (resins, cornstarch, or plaster) by the way of printing a gum from inkjet print head as per the shape of every cross-section as spotted by the CAD file. This is the only technology allowing full color prototypes to be printed. The school of thought is that this is the quickest method.

On the other hand, the liquids are fed by these machines. Photopolymer is one of such kind. These machines make use of UV (ultraviolet) flood lamp. It is mounted in print head for curing each layer on its deposition. A new technology called Fused Deposition Modeling uses a nozzle to deposit molten polymer layer by layer to the supported structure. The other approach is Selective Fusing of Print Media in the granular bed. Here, the media that has been unfused supports thin walls and overhangs in the piece which is being produced, thereby reducing need for temporary auxiliary supports for the work piece.

Ultimately, 3D Micro fabrication technique having a photo polymerization of 2-photons might be used to make ultra small features. Here, the preferred 3D object gets traced out by a completely focused laser in a gel block. The curing of gel into a solid takes place only in places where laser had been focused, owing to photo excitation’s non-linear nature. The gel that is left out gets washed away.

Resolution: Resolution is measured in terms of layer thickness. The X-Y resolution is given in dpi. 100 microns is the characteristic layer thickness. The X-Y resolution is compatible with laser printers. Diameter of the particles, i.e. You can assume that 3D dots is around 50-100 microns.

Applications: Standard applications are inclusive of design visualization, metal casting, CAD/prototyping, architecture, geospatial, education, healthcare, retail/entertainment, etc. Off late, 3D printing technology is being used in artistic expressions. Its biotechnological applications include bio-printing, computer-aided Tissue engineering, and organ printing.

Self-replication: The main purpose behind using 3D printing technology is its ability to replicate itself. RepRap is one such printer. It has the ability to print plastic parts and circuit boards. It is believed to print metals in future.

Invention Prototypes and the process of Invention Prototypes

2008-09-30T10:03:00.001-07:00

Invention Prototype

Invention Prototype cannot be ignored because they sought to prove the concept of the inventor to potential customers, suppliers, and investors-and most importantly, to the inventor himself. This has been the opinion of majority of experts. The idea behind creating a prototype is the accomplishment of a lot from the point of view of creativity, that too without having to put on so much of money in the idea of product or going for its commitment early on.

Construction of an ‘invention prototype’ at the appropriate time: It’s essential to construct an ‘invention prototype’ much before buying the tooling for building the product or seeking contract manufacturers. Many a times, it so happens that the inventor might, in reality want to build a prototype much before getting too fancy regarding computer drawings. He is likely to burn up loads of cash on ‘engineering drawings’ when possibly what he needs 1st is the papier-mache clearly showing him what is being tried by him. If that is the case, he is advised to revert to computer-aided drawings. Assessing the proper time for prototype is not all that tough. It just requires a proof of workability of the product invented by the concerned person.

The proper Invention Prototype for proper audience: An ‘invention prototype’ should be aimed towards the proper audience for doing its job. It means that the tailoring should be done in such a way that the requirements of the customers get fulfilled much to their satisfaction. Not only that, the prototype should be able to bear the critics of potential partners, investors, suppliers, and customers. This is a very important point: real appraisals should be done and friendly appraisals are not what you want to happen. The more slicker looking and operable the prototype, the ‘better’. Its always important to not let all of the praises go to your head. It’s better to spend less on this production, as there would be many other places for spending the start up capital.

Let >1 prototype be made

If the overheads are not very much, let the Invention Prototype be made into multiple versions. In the next few desings you will see that the creator will improve the designs. Due to this, the latest product arrived at would fetch more money owing to its modern and sharp design. Some people also have the habit of making two prototypes at a time. The first one would be meant for ‘show’ and the second one for ‘go’, i.e. the 1st one could be made to look like the end product and the 2nd one for demonstrating the functionality.

For instance- Battery Buddy had a ‘looks-like’ and ‘works-like’ prototype. The 1st one was created at ‘University of Michigan’. A box was fashioned to proper exterior dimensions as per the engineering drawings. It was painted with fancy, fine graphics. This version could fit on around 90% of vehicles in market. On the second tirial the outcome was a simple plastic box. It was grey-colored and around 4 times bigger than actual Battery Buddy. Finishing was not the issue then. The workability had to be checked; and it happened! Hence, the two versions made the task simpler from the buyer’s as well as seller’s point of view.

Home Foundry Information

2008-09-29T06:52:00.019-07:00

Home Foundry

The most noticeable item in any backyard foundry is the furnace. This is no surprise really, because without the furnace the entire Backyard Foundry operation would be nonexistent. The furnace can take really any size and form depending upon the need and budget of the metal caster. What really makes home DIY Metal Casting furnaces really unique is how many of them come into creation.

Sure there are plenty of companies that will gladly sell furnaces for the hobby metal caster and while this can be a viable solution to your furnace needs many metal casters prefer another method.

Making your own furnace is not as far fetched as it may seem and if you already a Do It Yourselfer, chances are you will have the needed skills and tools in your workshop or garage already. The reasons are endless as to why people decide to make their own casting furnaces. The most common reason is fulfilling a need.

Many hobbyist and metal workers find out, to their dismay, that the local commercial foundries can not make the needed part or if they do, they feel the need to charge an outrageous sum. Not to mention the fact that the traditional methods of DIY Metal Casting is quickly becoming forgotten as the industry turns to electric furnaces. So many hobbyists find that constructing their own furnace is an absolute necessity and a great way to preserve a piece of craftsman history. The artisans who use metal casting to create sculptures and other pieces find that making their own furnace grants them a greater amount of control over the entire process. This is actually how many people get into metal casting to begin with.

Lots of times, your first furnace will be very simple and small as you are just getting started. There is really no need to run before you can walk when it comes to something that will be using intense heat and melting iron which can be rather dangerous.

Home made furnaces have been constructed from coffee cans to trash cans or sheet metal welded together. While there are a few components that really should be bought like the retractor to line the furnace walls which should be resistant to high temperature for a prolonged period of time along with special connectors and regulators, most of the furnace can be created in your own home. You should be able to find most of the components that you can not make at hardware stores or plumbing supply stores for relatively cheap.

The parts for the casting furnace are only part of what you need to get as you also need to get a crucible for holding the metal and all of the tools needed to handle the hot crucible. While you are at it you might as well buy all the safety equipment like gloves, protective eye wear, and leather shoes. There is other safety equipment that you will need depending on the type of work and the type of furnace you are going to make.

Most likely, your first furnace is going to be a simple cupola variation. The cupola furnace which is going to resemble a smoke stack is a simple design and is relatively easy to make for anyone with mild craft skill. This type of furnace will not require a crucible since you will be able to pour the molten metal from the furnace itself into a ladle that can then be poured into the mold.

DIY casting furnaces are a great way to connect yourself with your metal casting work giving you more control. While building the furnace can be complicated at first, once you delve into it you will find the experience enjoyable and fascinating.

Metal Casting Zone is the premiere place to go to discuss everything about Metal Casting, Home Casting and anything else Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

How to Tell if You are Inftected with Spyware

2008-09-29T06:52:00.017-07:00

According to most PC magazines 80% of all computers have spyware on them.It's not all bad news, Many of these programs are very inisent.Most of these programs do virtually nothing to wreak your computer. In fact many of these programs such as games come installed on PCs right from the store.

You still need to make sure you are not infected.Most free virus scanners do nothing to stop spyware.Most free scanners do very little to protect your computer. Read a bit more about some popular threats at on this Remove Virtumonde site or this Trojan Vundo site. Both sites provide some good detail on spyware and how it affects your computer.

There are plenty of free ways to see if you are infected with a virus or spyware and that is to use a free trial program. I’m not talking about using a junk client. Check out the sites highlighted above for a free trial of Spyware Doctor.We really like this program. It constantly wins awards and is normally rated 5 out of 5 by most experts.Like everything in life worth value it does cost money but you can get a free 30 day trial. You really only need one day because the first scan will let you know if you have infections or not. If not then don’t worry about it. If you are infected with spyware then you need to take action.

Once the scan is done use your favorite search engine and do some reasearch to see how bad a threat this is. If you see a cookie as an infection and chances are you will don’t worry about it.You do not have to worry about these at all because they pose no harm to your computer.

Another good resource is this Vundo Removal Software
site.The blog is mostely about Vundo but does describe how many spyware aplications work. Remember do not purchase any spyware software or virus software without getting some feedback on it. The other thing to remember is no free client on the market provides enough protection. Most of these programs do not give you protection. It’s only after you have been infected that they kick in and by then it’s often too late.

A Look At The Different Internet Connections And Certain Pitfalls That You Might Come Across

2008-09-29T06:52:00.015-07:00

The internet is made up of a worldwide network of computers; this can make navigating the internet difficult. Data sharing worldwide is possible through these different internet connections. Some feel that the best resource in the world is the internet. This resource offers both business and pleasure opportunities. Different internet connections that are presently available make organization, communication, and research easier.

We will now learn about the different internet connections that are available. There are many options available, three of the most popular, which are available through the phone lines are: cable, traditional dial-up, and DSL.

As modern technology advances there has been an increase in demand for the wireless varieties of internet connection. With all the different internet connections available, the wireless options are now becoming very popular.

Wireless fidelity or Wi-Fi as the wireless internet is known, allows connecting to a network without being limited to a certain location. Wi-Fi is available in public locations, such as libraries, cafes and many hotels offer this service. Verizon and Sprint also offer wireless network as a long range service.

Of all the all the various internet Connection Set Ups, the wireless option is by far the easiest to set-up. Even people who are not technology "nerds" may understand this technology. It is as easy as going to the computer’s Start menu and click on the Control Panel. This is where the Network and Internet connections options are found. All of the different internet connections available can be managed from here. Next step is to go to network and sharing center, then make sure that you select network option. This allows you to manage internet connections from all wireless sources.

Now that you are in the proper menu, you will see the "Show All" option, click on it and then hit the refresh button. The active network connection that you want to log on to is located here. Choose the option that allows you to connect automatically if you plan on regularly connecting to this network. By checking this option, your computer will be able to find different internet connections and the proper one.

Troubleshooting will be required if you are unable to locate a network. You will first need to find the connect to a network window, next click on network or Set Up a connection. Then click on manually connect to a wireless network, press next. At this time you need to enter the security features and the network’s name.

Problems with Different Internet Connections

Remember if you experience any problems logging in to your wireless internet connection, contacting the service provider is strongly recommended. They will guide you step by step and solve your problem to accessing your internet connection. Overall the wireless option may be the best choice of all of the different kinds of internet connections.

CNC Design

2008-09-29T06:52:00.013-07:00

CAD

First we are going to talk about the initial element of CNC. That element is CNC Design . Before you begin a CNC project, you need to have a plan of action. The design is like a blueprint, you know what you are going to build before you ever build it.

Here are some important elements of design that need to be answered:
What size will it be?
What material will it be made of?
Who is the customer?
What will it be used for?

Your design can be anything. It could be an industrial part or a work of art. This is only really limited by your imagination. Many people use CNC every day to manufacture parts. Many hobbyists use CNC every day to create art and various home projects.

Before I design I like to sketch a few ideas out on paper. I like to toy with different ideas to spark my creativity. This is the equivalent of brainstorming. When I really get my juices flowing, that is when my best designs rise to the top. I generally carry around a notebook with me to note designs that I think of during the day.
After I have a few likely suspects, I try to look through each of the ideas to see if I can merge them somehow. Some designs have different parts or components to them. Some of these components are better than others. Can I take some of these parts and add them to another design to make it better? Just like writing, editing your designs is a critical step in the process.

When you are designing, you are really trying to describe what you are going to build. The more accurately you can do that, the better the whole process will go. Just like a house, if you have a strong foundation, you will have a good house. If you have a solid design, the rest of the process is easy.

CAD
CAD stands for Computer Aided Design or Drafting. CAD was developed in the early 60s. Today it is the premier way to design, develop and optimized products. People use CAD every day to design virtually every product you see. Generally, designers use CAD to design a product, and then produce prints to manufacture that product. A print is a picture of a part or assembly that is very exact. It includes the dimensions and a parts list used to manufacture a product.

Computer Aided Design (CAD) software packages can generally be broken into two groups. The groups are 2-D drafting packages or 3-D drafting packages. Most all software packages are moving to 3-D design. 3-D design is really the next generation of CAD. Utilizing 3-D design, engineers can make a model of their product. They can then look over this model for any apparent defects before it is ever made.

3-D Design
Utilizing 3-D design, engineers can cut down on the number of manufacturing mistakes that occur due to fit up and tolerance issues. This translates into a more efficient operation with less waste for the manufacturer.

Here are some examples of 3-D drafting/design software:
Inventor
TopSolid
SolidWorks
Alibre Design
Rhino3D

2-D Design
2-D design can be very efficient if you need to make a quick part that is not very complex. You could quickly sketch out a silhouette of an object and convert it into a CAM tool path. This is an operation where 2-D will really shine.

Here are some examples of 2-D drafting/design software:
AutoCAD
MicroStation

At some point you will need to use CAD. You will need to take your design and translated it into a print. The best way to do that is to use CAD. You will need to purchase a CAD program of some sort if you are serious about CNC. Many CAD programs have a free or trial period that you can use to evaluate the program. My suggestion is to try a few and then select one that fits the way you design.

CNC Information Free Community Site:
If you would like to know more about CNC, head on over to http://www.cncinformation.com
You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

How do Metal Casting Patterns Work

2008-09-29T06:52:00.011-07:00

Metal Casting

DIY Casting is a useful skill that has its roots in antiquity. Weapons and sculptures were traditionally created using this method but as the DIY movement gained momentum many modern day casters have found a use for Metal Casting to make plumbing fixtures, door knobs, and many other items. Today, small foundries can be found in many backyards, garages, and workshops.

In order to make a casting of metal, you will need a furnace capable of melting metal alloys at high temperatures. Usually, individual metal casters will construct their own furnace. There are companies that will sell small scale furnaces but they are often costly. The most common type of casting is called Sand Casting which uses sand or green sand to make the molds where the molten metal will be poured into to form the finished product. The mold is a handmade item placed in a flask which has two parts, a cope and drag. The mold is usually made of sand, but can also be created using other ingredients like latex or even metal. Most likely, you will set the pattern to form the mold cavity that can be seen in the mold.

The mold cavity will be an impression of the pattern including the fine details which will then be filled with the molten alloy. Pattern casting is an art form in itself, really, but anyone can create a pattern even if you have no artistic skill what so ever. The pattern is an original which will be cast into metal. Common pattern castings include complex engine parts for models, replicas of Civil War era weapons, sculptures, and even jewelry.

The pattern can be made of any material like clay, wood, and wax. The pattern material really depends on a few factors like the casting method and the availability of the material. If you are able to carve wood then you can use this skill to make patterns. There are some casting methods that call for the patterns to be made of certain materials. An example of this is the Lost Wax Metal Casting Method which will use wax as the pattern.

When creating the mold, you will place the original into the drag of the flask and place more molding material on top forming the cope. When the mold is dry you will carefully remove the pattern revealing an impression in the mold.

If you are creating your own pattern you will need to make it with Contraction allowances in mind. This contraction allowance will compensate for the shrinkage that occurs in many casting processes. In order to take out the pattern without disturbing the mold, draft allowances need to be considered as well. The pattern should have tapered edges to allow for easy removal.

Many who make their own patterns will add sprues, gates, and risers to the pattern so that when castled these items will already be in the mold.What these devices do is allow the hot metal make its way into the mold cavity.

If you find it difficult to make your own patterns then you can pay for pattern making services; although many casters in the same situation will just learn how to make patterns to save money. Pattern casting is a valuable skill to have and can be learned rather easily.

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Metal Casting Molds

2008-09-29T06:52:00.009-07:00

Metal Casting

Casting molds are an essential part of the metal casting process as it will be used to shape the final result. Nearly all metal casting methods will use some type of mold. The standard mold will consist of a cope and drag that when together is called a flask. The mold itself can be constructed of several materials depending upon the DIY Casting method.

Most molds will be made from latex, fiberglass, sand, and even metal. A lot of times you will see Sand being used in DIY Home Foundries and therefore Sand Molds are some of the most popular molds. In Permanent Mold Casting, the mold is created from metal. Most molds can be used over and over again, but not all of them. Certainly the metal molds can be used multiple times without loosing any quality from the finished product. However, molds created using sand or other materials will not have a very long shelf life. This is not generally seen as a huge problem just a minor annoyance since mold making is relatively cheap and easy.

No matter what material the mold is made from, the basic construction is pretty much the same. The molding box is called the flask which has a cope, the top, and drag, the bottom. You will then fill the flask with the molding material and then place the original into the mold. So, if you want to cast a tiny metal elephant, you will place an original of the elephant usually made from clay, wax, wood, or even metal into the drag of the flask. If this is done in sand you will ram the flask until the sand is packed tightly around the original. The top of the flask, the cope is then placed on and more molding material poured in. The entire flask is then rammed or vibrated making sure everything is packed in nice and tight.

When the molding material is dry, you will remove the flask and carefully split the mold to retrieve the original, in this case the tiny elephant. Now, if you want to make sure that there are some empty spaces in the cast to be finished then you will place cores into the mold. The cores are made of sand or wax.

The type of mold used depends heavily on the type of Metal Casting , alloy, and complexity of the pattern to be cast. Metal molds have little use in small foundries unless you plan on casting a lot of tiny metal elephants.

In some cases, pre-made molds can be found in hobby shops or through company casting companies. Usually, pre-made molds are used in miniature castings. Many individual metal casters prefer to make their own molds since it is inexpensive and allows them greater control over the finished casting.

Metal Casting involves several sets of skills and mold making is one of these skills. Eventually, all metal casters must learn to obtain the skill for making molds as this is very important to the casting process. Not only are molds used in metal casting but in other casting types as well. Resin casting and other plastic casting requires a mold as well. What the flask is made out of can be just about anything that you can imagine including wood or metal. What you are really looking for is something that can hold the mold material until it dries and if the fllask can do this, then it can be used.

Every metal caster should learn how to make a mold instead of relying on others. Really you are looking to save money as well as gaining what we all like, independence. Making your own mold is just cheaper.

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Foundry Supplies and Casting Supplies

2008-09-29T06:52:00.007-07:00

Metal Casting

You can get metal casting supplies just like different brands of clothing, very inexpensive and very very expensive. Home foundries tend to use supplies that are not too costly or that can be found close at hand. After all, home metal casting is usually a hobby and many get into this hobby since they need a cheaper source of parts and pieces that are either far too expensive or just impossible to find. This reason is actually what draws many people to metal casting in the first place. Given this, metal casting supplies used in smaller backyard foundries are generally cheap and made of items that are available in the garage or can be found at home improvement stores. There are several online resources and stores that offer supplies specially made for metal casting and if you have the money and are unable to create your own, it is encouraged that you purchase already made supplies.

The Metal Casting supplies you will need ultimately depend upon the type of work you plan to do. If you plan to use lost foam casting you will not need any wax and in that same thought you won't need any foam if you are going to use lost wax casting. The furnace type is also a consideration. Cupola furnaces do not use crucibles. A crucible is where you place the metal which will then pool and collect inside. So it is important to decide what kind of casting process and what kind of furnace that will be used before you rush out to buy supplies.

As for the supplies this will include the fuel source. Fuels sources can range from wood to propane. Metals with a higher melting point will need propane while wood can be used to melt pewter and possibly aluminum. Most home foundries will use propane since it produces a high temperature and is easily available.

Many of the DIY Casting processes use sand as a way to create molds and help secure those molds during the pouring. The type of sand used does not have to necessarily be specially formulated. Sand has been used in casting since ancient times so it only makes sense that most sand types can be used. Many hobbyists will even use playground sand to meet their needs. Now, there is a special type of sand used in casting called green sand. Green sand packs well and is able to hold its shape far better then common sand. For processes like lost wax you will need to find a healthy supply of wax since many of the steps involve the creation of wax models and molds. Wax and its use in this project is nice because it can be melted and used time and time again. Supplies for lost foam can be found in home improvement stores since foam insulation is suitable to use. You will not be able to reuse the foam but luckily, the foam is cheap.

Perhaps the most important casting supply is the metal itself. The metal used in Metal Casting varies due to need. Aluminum is a common alloy used in casting for a number of reasons, chief among them is availability. Aluminum soda cans are crushed and melted and proves to a good source of the metal. Many casters will find scrap metal in junk yards which tend to be a good source for brass, bronze, and iron. There are places to buy metals in ingots if you want a purer metal to work with.

Metal casting supplies often dictate what the caster can and can not do. Sometimes various adjustments need to be made to your next project or plan so remember to make a note of these so next time you will remember.

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The history of Artistic Casting and the way that you can practice Art Casting.

2008-09-29T06:52:00.005-07:00

Metal Casting

Art Casting is an ancient method of creating statues and sculptures that has been in practice in Meso-America, China, and Ancient Egypt since 2000 BC. The Greeks practiced it, so did the Romans, and pretty much any civilization with a strong interest in art.

Tin and Copper are what make up bronze and since its discovery it has been used to make weapons and sculptures. What is nice about bronze is that it can fill in even the tiniest detail so it is extremely desirable for artists. When art casting, bronze is the alloy of choice since it is both beautiful and easy to work with. There are few examples of bronze statues left from antiquity since the alloy became scarce and many of the statues were melted down for weapons and other sculptures usually for new emperors or victors.

The Lost Wax Casting process is the preferred method used when art casting. This process was used in ancient times to create bronze items. Small foundries like the type found in backyards, personnel workshops, and garages are able to use the Lost Wax Casting process with a certain amount of professionalism. Commercial foundries and professional art companies use the Lost Wax Casting process as well to create custom items and monuments. The process remains, essentially, the same since the ancient craftsmen who first pioneered the method. Investment Casting is just the same as lost wax casting except its called a different name because its being used for commerical manufacturing or jewelry making.

Metal Casting is one of the more enjoyable reasons to fire up the furnace and get into metal casting. While most think metal casting to be strictly limited to hobbyist and historical re-enactors, casting is a popular skill and craft used by a wide range of people for varying reasons. Artists see the need to have metal casting skills as it allows the artists to have direct control over the process instead of out sourcing it to a commercial foundry. A lot of times, you will pay very high prices to use the services that you will find at a commercial foundry. Art Casting on your own is often times economical and just smart.

Plenty of time should be allocated to the Lost Was Casting process as well as plenty of attention to detail because although it is simple compare to other methods, if you don't have those two items, then you will be in trouble. The artists will start with an original piece sculpted from wax. The original can be made of other substances like clay or even metal but wax seems to be the easiest to work with. The original will be used to make the mold. If the piece to be cast is large, multiple molds will be needed. This is common in art casting and completely possible with the use of shims and keys that will allow placing the pieces together after the casting process easier. Most molds will be made out of latex or other materials to help transfer the fine detail into the mold cavity.

The original is often destroyed during the mold making process upon removal. Molten wax is poured into the mold until the desired thickness is achieved. When dry, this wax copy is removed and chased which rids the piece of imperfections and is used to combine the pieces. You will place paths for the molten metal on the wax copy. You will also place a cup or funnel at the top of the copy. This process is called spruing and is done in wax.

A ceramic shell is placed around the copy. The shell isn't really ceramic but a sand and liquid silica combination. You will repeat this step until the shell is thick enough for the piece. You will then heat the item which will melt the wax inside. The wax runs out of the shell through the paths placed during spruing.

Then comes the part for the molten bronze. The bronze is poured into the top of the hollow shell. When cool you are going to remove the shell carefully to reveal the finished product. The bronze sculpture is chased, painted, and finished up however the artists choose.

Art casting can be done with any metal or alloy. If you are going to use the Lost Wax Casting process then you do not have to stick with bronze. In order to get that exact look sometimes you have to try a few other metals to see what works the best.

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Info on How to Aluminum Cast

2008-09-29T06:52:00.003-07:00

Metal Casting

Aluminum is the most common alloy used in metal casting. There are a few causes as to why this would happen and the main ones are availability and quality. Many metal casters have access to a large amount of aluminum with soda and beer cans that they crush and melt down. Aluminum has several desirable properties for the metal caster no matter if they are a hobbyist, artist, or are casting needed parts for home repairs. Many who cast aluminum also love the alloy since it can be used in all of the varying casting processes giving it a wide range of possibilities. Aluminum is often used as a practice alloy for the first time metal caster or for casters who are trying out new methods and ideas.

Aluminum is relatively easy to melt so you will see that alot of the DIY home foundries will be able to melt aluminum no problem. It may even be possible to use charcoal though many just use propane since they have it on hand for other alloys. For your first run at casting, charcoal should be fine.

If you do choose to use soda cans for your source of aluminum you are going to need a fair amount depending on the size of the item to be cast. Make sure to crush the cans as much as possible before placing in the crucible or other area that will be used to melt the alloy.

Since any Metal Casting process can be used with aluminum the choice will rest with you. There are three casting methods out of the numerous methods available for aluminum that seems to be preferred by small time metal casters. These methods are sand casting, lost foam casting, and investment casting.

Remember, though, aluminum can be used with any metal casting process so do not be afraid to experiment.

Sand Casting

Sand casting aluminum is very common and is a popular way to break in a new furnace. A sand mix with a bonding agent stirred in is what Casters use to get a mold that goes around the item that is to be cast. The item, or pattern, is removed very carefully revealing the mold. If there will be any empty spaces in the finished product then a core is added to the mold. The core can be made of sand and is placed so that the molten metal fills the area of the mold around it. So, say you're making a picture frame you will place a cone where the glass will go so the molten aluminum will not fill that area.

Many choose not to use sand casting since it does not allow for fine detail whereas other casting does, but it is inexpensive.

Lost Foam Casting

Lost foam casting which is sometimes called evaporative casting. The lost foam casting is a form of sand casting. The entire process is relatively cheap and when used with old soda cans casting aluminum this way is great on the budget. A foam copy of what you want to cast is created and surrounded by a ceramic shell. You will place the copy in loose sand which will help to hold the shape during the pouring process. The molten aluminum is poured into a cup that in inserted into the copy. The foam vaporizes and the aluminum replaces it filling the area in the ceramic shell. Removing the shell will reveal the Metal Casting . This method is great for fine details but the copy is lost to the ages. Luckily, foam is not all that expensive.

Investment Casting

Investment casting is commonly used by jewelers as it allows precise castings with full detail. This form of casting has been around since ancient times under the name of lost wax casting. Investment casting involves creating a wax copy which is then covered in slurry creating a shell, much like the kind of shell in lost foam casting. The molten aluminum replaces the wax which melts out of the shell and can be collected for reuse. Artists and casters that need high precision parts favor this technique.

Given the number of options that aluminum presents to the caster finding the right casting method will involve some time. To help decide which Aluminum Casting process is best consider factors like quality and cost.

Many metal casters use aluminum far more then they use other alloys like brass, bronze, or iron.

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Process of Creating Metal Casting Patterns

2008-09-29T06:52:00.001-07:00

Metal Casting

A casting pattern is basically a shaped form of either metal or wood where sand is packed around it in the mold. When this pattern is removed, the resulting cavity would be exactly the shape of the pattern object that was to be cast. The casting pattern should however be designed in order to be easily removed without any damage done to the mold. The pattern should be also be perfectly dimensioned and should be very durable for the intended use. The patterns that are used in sand casting can be made of plastic, metal, wood or any other material. The casting patterns are made to the right standards of construction this is basically because they can last for a reasonable time. The durability of the pattern would however depend according to the quality of grade in the casting pattern. If the pattern is made of right quality then they would be constantly providing dimensionally perfect casting patterns.

The process: The process of making Metal Casting is actually called as pattern making which is in fact a skilled trade which is related to the trades of die and tool making and mold making. However this also sometimes incorporates the elements of fine wood making. The makers of casting patterns basically learn their pattern making skills through trade schools and apprenticeships over a number of years of experience. The pattern maker is really the one who carries out the design but sometimes you will see an engineer who many help a few times.

Design: The Metal Casting incorporate proper allowances for the shrinkage and this process is called as contraction allowance. Their accurate values however depend on the alloys that are being used and the accurate sand casting methods that is used. There are a few alloys that have the overall linear shrinkage of nearly 2.5 percent as other alloys might actually experience 0 percent shrinkage or even a light positive shrinkage or it might also increase the size in the casting process. The amount of the shrinkage is also dependant on the sand casting process that is employed for instance chemical bonded sands, clay bonded sands or other bonding materials.

The casting patterns should also include proper allowance for the draft. This means that the sides would be tapered so that when it would be taken out from the sand it will not tend to drag out sand of place along with it. This process can be called a taper, but it is only preformed when the temperature ranges from one to three degrees. The foundry engineers or the pattern maker of the casting patterns actually decide where the gating systems, risers and the sprues are places in terms of casting patterns. In this pattern a hole is desired in the Casting Patterns that uses a core which defines the location and volume of in the casting where the metal would not flow into. Chills are also used sometimes located on the casting patterns surface and these are then formed into sand molds. These casting patterns however continue to be a vital requirement for sand casting of metal.

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Learn about Casting Molds

2008-09-28T03:34:00.007-07:00

Metal Casting

Metal Casting is basically the manufacturing process through which a liquid material is emptied into a mold that includes a hollow opening of the desired art or shape and is then allowed to harden. This hardened casting is then removed and broken out in order to complete the process. Apart from using sand as the main mold material there is a metal that is used as the mold. Normally, a cast meehanite or an iron is used as the material for mold and the objects are made from the sand or metal. The cavity surface is basically covered with a thin layer of material that is heat resistant which can be either sodium silicate or clay.

Casting Molds: The casting molds are actually pre heated to nearly 392 degree Fahrenheit before the metal is pored in the cavity. The design of cavity for these casting molds does not chase the same principle for shrinkage like in the sand casting molds. This is because of the fact that the metal casting molds heat up and enlarge during the pouring process and so the cavity does not need to be expanded like in the sand castings. Nevertheless, care should be taken in order to ensure a correct thermal balance as you can use external water source for cooling or you can also opt for suitable radiation techniques.

Permanent Metal Casting : Although these permanent casting molds are not as flexible as the sand castings which allow to be used in different metal patterns or designs but these lower the cost of producing the part. When there is a production run of more than 1000 parts the permanent casting molds would produce much lower piece of cost part. Apart from this, the break even point also depends on the density of the part. There are more complex parts that are favored when you use these permanent casting molds. The typical part size would be around 50g to 70 kg and the basic materials used are medium and small parts that are made from magnesium, aluminum and brass and also their alloys.

Slush Casting MOlds : The slush casting molds are actually a special type of permanent casting molds in which the molted metal is not allowed to solidify completely. After gaining the desired wall thickness the still not solidified molted metal is then poured out. This is basically used in order to make void ornamental objects like lamps, candlesticks and statues.

Corthias Casting Molds: This type casting molds is yet another variant of the permanent casting molds in which basically a plunger is used to pack the molted metal through the spure hole. This type of process allows thinner walls and to produce greater details.

Vacuum Permanent Casting Molds: This is also another type of permanent casting molds which is also similar to low pressure permanent casting molds. In this type vacuum is used rather than a pressure. You can make thin wall casting through this type of casting molds like in the other low pressure casting molds. Apart from this the results are high as there are no risers used.

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DIY Casting Movement

2008-09-28T03:34:00.005-07:00

Metal Casting

People who like to make their own artifacts and are enchanted with the idea of building new and useful things from scratch are sure to enjoy ‘do it yourself casting’ that can be done at home using simple methods and techniques. There are a lot of unique things that one can create with their very own home made DIY Metal Foundry. A good understanding of some basic foundry knowledge and few simple tools can help you make metal casting at home possible. Many people find it difficult to get special parts for their cars or bikes or even find it very costly to modify their cars, house or even bikes. If you develop your hobby of Metal Casting , then you can easily make special parts for your cars and bikes and also will find it easy and save a lot of money. Casting can be used to make many things like, simple ornaments knobs and even handles. Hand wheels and small machinery or tools can also be made. Small articles like brass name plates, statues, vintage motorcycle and car parts, etc can also be made at home.

Furnace Designs that can be made at home:

Coffee Can Metal Casting : This is very easy to build and even a large coffee-can will serve the purpose. This can be used to build a simple gas fired furnace.

The “2 bucks” furnace: Is not as the name suggests, the furnace can’t be built in two bucks. It refers to the design based on two buckets. It is very useful and a good experienced person can build it with a budget that is below 10 bucks. What you are getting here is that it effectively burns propane which is a plus.

Flowerpot crucible furnace: This furnace can also be built very easily and most importantly, it can be built using the waste material from your back yard. All you need is an old flower pot and a few metal cans. Melt the metal cans and coat the inside of the flower pot with the melted metal and you furnace is ready.

Other types of furnaces that can be built at home are dirt and brick furnace, chimney pipe furnace and breaking metal in barbecue.

Tools and material needed:

Home made Aluminum pulleys: Pulleys of different size and shapes can be made by bending aluminum rods or plates. They are very simple to make and once you get the hang of it, you’ll enjoy making them.

Building steel crucibles: Steel crucibles are a bit difficult to make. You need to cut the steel and weld it using a welder, so it is a bit risky job and can cause injuries. It needs to be done with utmost care and precaution.

Home made ladle: A ladle can be made at home using a small portion of a steel water pipe; you can select the water pipe according to your needs and then cut it in the desired dimensions to create your home made ladle.

After doing all this basic work and gathering all the required information, you can now start your own Casting Furnace and make desired articles. One other thing that needs to be done is to make the molds for the shapes and sizes that you want to make and then you are done. All types of metals and alloys can be used and melted for home casting, only their degree of heat required varies.

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The process of Cupola Casting

2008-09-28T03:34:00.003-07:00

Metal Casting

A Cupola is a type of furnace that is very much alike to blast furnace. The Cupola furnace is refractory lined, stack of steel that is around 20 to 35 feet high. It rests on a base plate that is made of cast iron and has four legs. The casting that is obtained from the cupola furnace is known as a cupola casting.

Cupola Furnace: The Cupola Metal Casting furnace is one of the oldest forms of furnace that have been used by the iron and metal foundries. The Cupola furnace is well known throughout the casting industry as it is the simplest and easiest furnace to make and utilize. However, the cupola’s use is declining and the furnace is fast being extinct.

Merits of the Cupola Metal Casting Furnace: Though the electric or the blast furnace has started replacing the Cupola Furnace, it has some special benefits of its own. The Cupola furnace is very nice in the fact that its set up so it can remain always in action and working order. The furnace also offers a very high melting rate. The most important merit of the furnace is that it has relatively very low melting cost. The furnace has also permits a lot of ease of operation.

However, due to the invention and development of the electric furnace, the use of Cupola furnaces has substantially declined. The electric furnace melts a much larger amount of metal. The operation cost of the electric furnace is also very low. The electric furnace also emits a much smaller level of smoke heat and also pollutants.

Construction of the Cupola furnace: The Cupola furnace is constructed in a crude and simple manner. The Cupola Metal Casting furnace is a vertical structure like a steel shell. The steel is lined with refractory bricks from the inside. The furnace has an opening half way in the vertical shaft. The charge is introduced through the opening. The charge is divided into different layers. Here is where the metal remains until its time to be melted. The metal is mixed with coke, fuel, and lime stone flux. The fuel is burnt directly into the air and is introduced in to the furnace through the tuyeres which are positioned above the hearth. The hot gases that have been produced ascend and pre heat the charge.

The cupolas in majority of the cases have drop down doors. The bottoms can be dropped down to facilitate the cleaning and the repairs. At bottom in front of the furnace is a tap hole. The molten metal is removed from the tap hole. There are several holes for slag to escape but sometimes there is another one at the rear. On the top of the stag you will find that it is covered with a spark or what is also called a fume arrester.

Usually the cupola has a diameter of 405 to 2000 mm. It is operated on varying fuels for different metal ratios. The molten metal that can be produced in the copula of this size at a speed of 1 to 30 tones per hour.

Continuity of process: After the process of melting has ended, the charging is halted. However, the blast of hot air is always maintained till all the metal has been melted and has been taken out from the tap hole. The left behind residue is removed a while after the air cools down and bit and this residue is usually removed by opening up the doors at the bottom.

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Information on Resin Casting and the process of Resin Casting

2008-09-28T03:34:00.001-07:00

Metal Casting

Technical Installation is the process that is used to preform Resin Casting. The process of Resin Casting is a complex process that is used in a variety of fields. What is neat about resin casting is that it gives a higher quality and precise look to the product that is casted.

Need for Resin Metal Casting : Resin casting is used to obtain a high level of quality and also precision in the dimensions of the product. Resin casting is basically used in the process of miniaturization i.e. the process of making things small. The process of Resin Casting is also used extensively the field of electronics. The electronics industries today resort to the resin castings to achieve the norms of total quality management.

The process of resin metal casting earned success and also gained popularity in the field of electronics because it facilitated the acute miniaturization process and also at the same time maintained a high level of quality. The electronics industry is a very demanding field in terms of quality and cost. Experts recommend that the process of resin casting is an ideal way to achieve the required quality and it also helps cut down the cost of production. The process is also highly productive and also reliable with respect to speed.

Industrial Applications of Resin Casting: The process of resin casting is basically used in the electronics industry. Resin Casting is used in the production of transformers, Liquid Crystals Displays more commonly known as the LCD’s. It also used in the manufacture of heavy electronic systems.

Important steps in Resin Casting : The process of resin casting is completed in basically five important steps. The first step is to condition the resin, and then the material is transported. After the transportation of the material the three most important steps are executed. First the material is metered, then the material is mixed and then finally it is dispensed.

Conditioning process: The process of conditioning in the resin casting evenly distributes the fillers ion the mixture. The conditioning also eliminates the moisture and air. It also makes the mixture constant, and also elevates the temperature of the mixture. The process of conditioning also maintains a low viscosity in the mixture. This process is very important for complex combinations as it intensifies the quality of the product.

Process of Material Transportation: In the process of transportation of the materials, the piston pumps, screw pumps, and the gear pumps are used. For the highly viscous substances, instead of gear pumps, follower plate pumps are used.

Mixing Process: This process is very important as it is mean to be used to obtain an equal and stabilized reaction through all the materials. The most commonly used methods in the mixing are the static mixing tube, the dynamic blender, and the dynamic static mixing tube.

Dispensing process: The process of dispensing is the most important process in the Resin Casting . While the dispensing process takes place, the dispensing unit and the movement of the part are relative to one another.

Resin is casted through various dispensing processes like the metering systems, or sometimes the dispensing is done in a vacuum. In the industrial to cut costs and also time multiple dispensing units are used.

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Metal Casting Groups

2008-09-27T05:19:00.003-07:00

Metal Casting

Metal Casting is one of the most widely used processes that is used in the production and process industry. In the metal industry the process of Casting is the basic and he most essential step in the process of production. At the dawn of the industrial revolution, casting was a very crude process that had not undergone development.

Need for associations and institutes: Though the process of Casting is an important step in production, it remained underdeveloped for a very long period of time. The basic need for the formation of metal casting related associations was to develop the process of casting. The many associations that are working for the development of metal casting are continuously working for the development of the process. Associations and the groups that have been formed by the companies are constantly experimenting with the proposed reforms in the casting process. Many of them have also come up with sound technical rectifications and an amazing number of proposals.

Aims and Objective of Metal Casting Associations and groups: The basic objective of all the Meat casting Groups and associations that have been working for a few decades remains unchanged. The associations strive to develop the process of casting to the pinnacle. The global market has become demanding and competitive than ever. The associations helps the member companies in maximizing their quality standards. These associations also work for the spread of appropriate technology. Many innovations and inventions are proposed and executed for the technological benefit of the member companies. When you receive this kind of support it really helps the company cut its costs of production. It also helps the companies to increase the quality and also ht performance of their production units.

Work against pollution: Metal Metal Casting companies are often pressurized and also accused of polluting the environment. A lot of information on how to dispose of pollutants is given to these companies by some of these casting associations. A lot of times, companies work together in their respective area's to dispose of waste at the same location. Many of the associations have set up their own norms for the member companies.

Man power safety: Some of the associations also keep a tab on the safety of the workers. A metal casting industry is a very dangerous place to work in. the associations hence have prescribed many safety norms to the member companies.

The norms regarding safety of the environment and the safety of the workers if not followed always invite trouble from the government. If the safety norms of the associations are followed then the intervention of the government reduces considerably.

Spread of Knowledge: To make the people in the industry aware of the ongoing commercial development and technical research the associations arrange international expos and also many exhibitions. The associations also represent their member companies in many seminars organized on the international level.

Commercial Aspects: The metal casting associations work as exchange houses for commercial meetings. Many associations give sound financial information and also explains the market conditions to the member companies.

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Learn about the basics of Green Sand

2008-09-27T05:19:00.001-07:00

Metal Casting

Green Sand: Green sand is also called as foundry sand or molding sand. This is utilized for sand Metal Casting . When this sand is oiled or moistened, it has a tendency to pack well and retain the shape. Pulverized Coal, Water, and Bentonite Clay and Sand are what makes up what we call Green Sand. Out of these four components, the biggest part is that of the sand. There are several proportions of these four components. The different ratios are used to adjust the surface finish, moldability and capacity of the hot molten metal to degas. The prime use of this sand is in the Metal Casting . The coal is usually called as sea coal in foundries. The Amount of Sea Coal is just about less than five percent. It undergoes partial combustion when there is molten metal present and this causes offgassing of organic vapors.

Green sand is stored in flasks (as the casters call the container). What these boxes are are boxes that don't have a bottom or lit to them. This box is divided into two half parts and these are connected together. These halves are called as the top or cope and bottom or drag flask.

As per its name, green sand is not green in color. The word “green” is used as it is used in the wet state.

Casting Sand: Some Metal Casting sands are oil bonded and foundry mix sand. This is a mixing of oil, resin and sharp fine silica sand. Such a mix can be utilized in sand casting of all varieties of metals. Some casting sands consist of 20 percent more oil and resin as compared to other brands. What you are trying to do is to find the best mix that will have good freen power and a very good finish.

A good sand to use for casting sand is an oil bonded sand and can be used as a substitute for water bonded green sand. The advantage over traditional, older sands is that as water is absent, the sand does not steam like the traditional sands. This sand is more secure to use than green sand. The reason is that potentially explosive quantities of steam are not generated. Due to this dearth of steam generation and the smooth texture of the sand, the oil bonded sand results in a smoother surface finish. The novice can use these sands and get professional results.

Use of casting sand: The same techniques, patterns and tools that are used for water bonded sands can be used for oil bonded casting sands. As the sand has better adhesive properties, there are fewer hassles with loose sand in the impression. The difference is that water cannot be used to manage loose sections. However, as the self adhesion is better, there are fewer problems of crumbling.

When the oil comes in contact with molten metal, it does not burn. When the castings are being shaken out, it is advisable to take off the sand that is burned. This sand that is burned can then be mixed again in the pile of fresh sand. It reabsorbs oil and works very well. After repeated use of this sand, the oil gets depleted. In this case, around 30W of non-detergent motor oil can be used to reload the sand with oil.

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Metal Casting Tools and Definitions of Metal Casting Tools

2008-09-26T05:06:00.003-07:00

Metal Casting

There are various types of Metal Casting tools. Provided below are details of some of the casting tools.

Esmarch plaster scissors: These are German stainless steel cast scissors of high quality. The entire length is 20 centimeters or 8 inches. There is a 6 centimeters slanted blade for safety of the patient. The handle for leverage is of 15 centimeters. This is perfect to cut the inner layers of synthetic cast materials or plaster.

Good stainless steel scissors are really what you want for casting and the best ones are Lister Bandage Scissors. The size of the blade is 5.5 centimeters. It resists rust and corrosion. This scissors are perfect to remove QuickCast splints and casts.

Cast scissors for serial finger casts: These are manufactured from German stainless steel of highest quality. Nine Centimeters ends up being tht total length. There is a 1.3 centimeters slant design on the cutting surface. During cast removal, there is good patient safety and the scissors offer excellent force.

Metal Casting spreader: This has a stainless steel construction. There is a spring loaded handle to facilitate use.

Metal Casting breaker: The length of the cast breaker is seven inches. This is an O.R. quality German instrument. This is used for lightweight cast breaking and trimming. This has deep serrated tips and is free of latex. The cast breaker is available in sizes of 9.5 inches also.

Plaster and Utility shears: The length of this instrument is 8 inches. This is a German instrument of O.R. quality. There is a spring loaded handle design that decreases the hand fatigue. This is very efficient in case of cotton or cloth wadding. It is free of latex.

Wire suture scissors: This is a stainless steel scissors of high quality. This is a perfect device to remove finger serial casts and to make tight corner cuts.

Fiskars all purpose snips: This instrument has a positive safety latch, a stainless steel spring and a comfort grip. The design is such that there is maximum power and handling ease. It is important that the blades have a very high quality stainless steel blades so they can cut a variety of materials. Low temperature thermoplastics can be cut at room temperature by this device.

Aviation snips: These snips are of industry quality. Non-heated splinting material can be cut with efficiency. It can be used to cut straight lines as well as wide curves. The handles are coated with plastic to increase the comfort. This device can be used in the left hand as well as right hand.

A good pair of scissors that will work for those with weaker hands or those that have arthritis are called Softtouch Spring Action Scissors as the spring helps to operate the scissors easier. There is a gray cushion grip. This is used to provide relief to the finger and thumb discomfort. It also absorbs squeezing pressure. The handle can be easily gripped and used in the left hand or right hand. There is a gentle spring action to open blades at the end of each cut. This offers relief to the hand and joints. There is a large slide lock for single handed operation. This also maintains the blades closed for portability and safe storage. It is free of latex.

Cast stand: The height can be adjusted. This comprises of a drip bucket. While the limb is being casted, it provides support to the arm or leg of the patient.

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Learn about Metal Casting Torches and Furnace Torches for Metal Casting

2008-09-26T05:06:00.001-07:00

Metal Casting

When one talks about Oxy-Fuel Cutting or Oxy-Fuel Welding, they mean the process when you cut or weld metals by using pxygen and fuel gasses.Really, these two processes are very very different. In the first process, a cutting torch is made use of for heating ferrous metal to a temperature of around 980 degree Celsius. An oxygen stream is being trained on a hot metal that combines with iron chemically which later flows from the kerfs, or cut in the form of slag of iron oxide. In the second process, a ‘welding torch’ is made use of for welding metals.

Oxy-Fuel torches are not torches that take the air and use it to burn the inside fuel. They stand out owing to the use of single tank. Really, this happens because you need two tanks and oxygen and fuel for welding. It’s not possible to melt some of the metals with single-tank torches. Therefore, you can use these torches all you way for brazing and soldering but they should not be used for welding. A metal-cutting torch is better known as hot blue spanner, blue wrench, hot wrench, smoke wrench, and gas-axe.

Types of Metal Casting Torches: The torch can be defined as the part held and manipulated by the welder to get the weld made. It possesses a valve and connection for oxygen and the same things for fuel gas, a handle to obtain the grip, an integrating chamber (angularly set) where there occurs a mixing of oxygen and fuel gas, with a tip where formation of flame takes place. The fuel gases used along with oxygen include propylene, propane, hydrogen gas, MAPP gas, Liquefied Petroleum Gas (LPG), and the most widely used is acetylene.

Injector Metal Casting Torch: It can be defined as an archetypal oxy-fuel torch, also known as an equal-pressure torch. It carries out the mixing of mere two gases. The injector torch operates in such a way that high pressure oxygen comes out of the tiny nozzle present in the torch head, and the fuel gas gets dragged towards it via the venturi effect.

Rose-bud Torch: The use of this torch is to carry out the heating of metals for straightening, bending, etc. It is generally used where a huge area requires heating. It produces a rose-bud shaped flame at the end, hence the name. This torch can carry out the function of heating small areas like rusted bolts and nuts as well. However, here, filler rod won’t be used with torch.

Cutting Metal Casting Torch: The head of the cutting torch is used for cutting metal. Its identification details are as follows: The inside of the torch consists of a combination of oxygen and acetylene. It helps in producing flame of a high temperature. Its 90 degrees where the three pipes are attached to the nozzle. It also contains an oxygen-blast trigger which blasts away the material during its cutting by the way of providing oxygen.

Welding Torch: The welding torch consists of either 1 or 2 pipes running towards the nozzle without oxygen-blast trigger. As the name suggests, it performs the function of welding.

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Metal Casting Process and Spin Casting and Sand Casting

2008-09-26T05:05:00.001-07:00

Metal Casting

There are various casting processes being implemented now days. The oldest amongst them is sand casting. Spin Casting is also widely used. They can be described as follows:

Sand Casting: Sand Casting involves formation of mold from a mixture of sand and to pour a casting liquid, most probably, a molten metal into mold. To remove the mold, you must wait a little while for the metal to solidify. There are two methods or types of sand molding and those are the green sand method and the air set method. The first one consists of mixture of clay, moisture, silica, and many other additives. The second one consists of mixture of dry sand and other materials, not moist clay. They are mixed with the help of a quick curing adhesive. When all of these materials are used together, it is a process called air set.

At times, there is temporary plug placed to pour the fluid which is to be molded. Air-set molds usually form molds consisting of two parts-the bottom and the top. The mixture of sand gets tamped down after its addition. It does not generate any by-product. After the solidification and cooling of metal, the mold gets usually destroyed. This is because its removal involves a lot of breaking and cracking. The casting accuracy depends a great deal on the sand and the process of molding used. Castings composed of green sand result into formation of rough texture on casting surface, and this characteristic makes them easily recognizable. The smoothest castings are really produced when one uses molds that are air set.

Many a times, the casting process results in losing of components of sand mixture. It is possible to reuse green sand by the way of adjusting the composition to get the lost additives and moisture replenished. The entire pattern itself is eligible to be reused for producing novel sand molds. The method of reuse can be continued for an indefinite period. In 1950, casting process got automated partially. They have been in great demand for developing production lines since then.

Spin Casting: Sand Casting is better known as Centrifugal Rubber Mold Casting (CRMC). It implies utilization of centrifugal force for producing castings out of rubber mold. As a customary practice, a mold having shape of a disc gets spun through its ‘central axis’ at a pre-decided speed. The material used for casting is usually thermoset plastic in the liquid form or a molten metal. It gets poured into the mold through the opening at its centre. Corresponding to the solidification of metal, or the setting of thermoset plastic, the spinning of the filled mold takes place.

Normally, organic rubber or vulcanized silicone is used as a mold-making substrate in spin casting. Vulcanization takes place in the middle of process of mold-making. After the successful completion of vulcanization process, venting and gating must be undergone by the mold. This implies carving of channels for ensuring proper material flow and air during the course of casting. Your best bet for preforming the proccessed is to either use a scalpel or knife. The mold complexity is directly proportional to the time required in implementation of venting and gating.

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Metal Casting Supplies and Information on Metal Casting

2008-09-25T07:55:00.005-07:00

Metal Casting

Some of the Metal Casting supplies are described below.

Cast cutters and blades: There are two varieties of cast cutter blade for plaster casts – 2 inches and 2.5 inches. This comprises of one blade and in most of the cutters, stainless steel blades fit in. This has a maintenance free operation and is comfortable to use. There is a high torque motor and an ON / OFF switch. The Cast cutter blade for synthetic casts is also available in two sizes – 2 inches and 2.5 inches. This has the same features as mentioned above. The Hercules Plaster Shears 7.5 inches is a Hercules heavy duty bandage and plaster shears 7.5 inches (19.1 cm) and has a serrated blade. The Cast cutter heavy duty with metal housing consists of one 2 inches fiberglass blade. In most of the cutters, a stainless steel blade can be fitted. The length is 12.5 inches and weight is 3 lbs 13 oz. This is specially lubricated for greater service and more comfort. The heavy duty can be used in both clinical use and fabrication setting.

Cast padding: The specialist Casting padding 3 inches X 4 yards is made up of micro pleated cotton fabric that stretches more than 50 percent. There is no need to tear and tuck for a smooth and comfortable fit. This is also available in sizes of 4 inches X 4 yards as well as 2 inches X 4 yards. The Sof Rol padding 3 inches X 4 yards is made of 100 percent surgical grade rayon. This is also available in sizes of 2 inches and 4 inches X 4 yards.

Metal Casting splinting materials: The orthoplast II splint material plain is available in size of 18 inches X 24 inches X 1/8 inch. The setting time is 3 to 4 minutes. The finished splints can be butt bonded, hinged, bonded, strapped and riveted. There is a wax coated surface. This is self adhering when heated. This is majorly designed for upper extremities. Hand Splints is where this really comes in handy. Its the contours of the body that is molds to so you don't get any wrinking which is very good. The orthoplast splinting material plain is available in sizes of 18 inches X 24 inches X 1/8 inch. This is made of a low heat thermo plastic material and is highly comfortable. After this material is heated, it can be molded or cut to any shape and adheres to itself. This material can be butt bonded, hinged, bonded, strapped and riveted. This can also be used in cylindrical casting procedures.

Heat gun: This is of two types – heat gun and master heat gun 220 volt.

Splinting pans: The forma splint 14 inches X 10 inches is an extremely compact and lightweight design. So, it is perfect for small splinting needs or for varying spots. This has a stainless steel working tank of dimensions 13 inches X 9.5 inches X 1.25 inches. This has a lexan cover. Its important to have a good working thermostat so it can maintain the water temperature between 150 and 190 degrees Farenheit. There is a high heat safety switch and grounded hospital grade plug. The empty weight of this device is 5.5 lbs. The Required Temperature is reached in only around 15 seconds.

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Aluminum Information

2008-09-25T07:55:00.003-07:00

Metal Casting

Aluminum is amongst those metals which can be ‘cast’ by every process used in metal casting. These processes, in descending order of quantity of aluminum casting are: die casting, permanent mold Casting , sand casting, plaster casting, investment casting, and continuous casting. The Casting process is selected on the basis of factors such as cost, feasibility, quality, etc.

Feasibility is not a problem, as all the above methods are quite practicable. However, the most suitable casting method can be decided according to the design features or dimensions. For instance-Large products are made using sand casting. The quality factor is also important in selecting the casting process. Quality refers to both, mechanical properties (ductility and strength) and soundness (surface imperfections, cracking, and porosity freedom).

The methods most commonly used can be described as follows:

Die Metal Casting : As per the statistics, around $2.5m worth of die-castings of aluminum alloys are produced in the US alone every year. The process of die casting utilizes almost two times the tonnage of aluminum alloys as the combination of other casting processes. Die casting is best suited for large quantity production of relatively tiny parts. Aluminum die castings upto 50 Kg of weight can be produced if casting-machine costs and high tooling are justified.

Some common applications of die cast aluminum alloys are inclusive of alloy 380.0 for Lawnmower housings, Alloy A380.0 for streetlamps housings, dental equipment, typewriter frames, Alloy 360.0 for frying skillets, instrument cases, cover plates, parts needing corrosion resistance, Alloy 413.0 for outboard parts of motor like connecting rods, pistons, housing, and Alloy 518.1 for conveyor components, escalator parts, aircraft, marine hardware.

Die castings cannot be easily heated or welded due to entrapped gases. Efforts are being on the war footing to overcome this obstacle. The die castings of aluminum alloys are generally produced using aluminum -silicon-copper alloys. This alloy family gives an excellent combination of corrosion resistance, strength, and cost, along with respite from ‘hot shortness’ and high fluidity which are mandatory for easy casting. To avoid corrosion or resit it better than other alloys, look for an alloy with a lower copper content and this should help.

‘Permanent Mold’ casting: ‘Permanent mold’ casting is best suited for high-volume production. Their size is larger than ‘die castings’. These castings have a very low pouring rate. They are gravity-fed. Outstanding mechanical properties are exhibited by ‘permanent mold’ castings. There is a lot of scope for further improvement if they are given heat treatment.

If you are looking for some of the most common alloys of aluminum permanent mold casting is the alloy 366.0 for automotive pistons, Alloys 355.0, A357.0, C355.0 for impellers, timing gears, compressors, missile and aircraft components, Alloys A356.0, 356.0 for aircraft wheels, parts of machine tools, pump parts, valve bodies, marine hardware, and 296.0, 333.0, 319.0.

Sand casting: This type of casting involves formation of casting mold (with sand). It is inclusive of conservative sand casting & lost-foam casting. The first thing we are looking at involes the process of making a pattern of sand and then pouring the hot metal into it and then allowing it to form and then breaking it. When you are using a lost foam pattern, you are using a dispensible pattern of foam that goes into the mold. The rest of the procedure is the same as conservative sand casting.

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Brass Casting Information

2008-09-25T07:55:00.001-07:00

Metal Casting

Brass Metal Casting , as the name suggests, involves the use of brass as the molten metal. Brass casting can be carried out by the way of sand Metal Casting only. Sand casting can be defined as a ‘cast part’ produced by formation of a mold from a mixture of sand and pouring the casting liquid (mostly molten metal) into mold. Then the air-cooling of the mold takes place. The mold must only be moved after the metal becomes solidified. The metal used here is brass. It is a known fact that brass is an alloy of copper and zinc. Hence, to be precise, the molten metal consists of two elements.

Sand molding consists of two types- ‘Green sand’ molding and ‘air set’ molding. The first one consists of a blend of moisture, clay, silica sand and other additives. The second one makes use of dry sand bonded to all the above materials except moist clay, by the way of using an adhesive, which is fast curing.

At times, there is a placing of a temporary plug (in the mold cavity) to enable the formation of a channel to pour the fluid which is to be molded. The molds of the second type, i.e. Because the molds are air set, what you get out of that is a two part mold. The two parts are bottom and top. The tamping-down of the sand mixture takes place as it gets added. Many a times, the final assembly of the mold is vibrated to get the sand compacted and get the unwanted voids filled. Then the molten alloy (brass) gets poured into mold. After the solidification and cooling of brass, the separation of casting from sand mold takes place. Normally, such molds are one-time usable.

Casting Patterns: A designer or an engineer provides the design of the object to be produced. On the basis of this design, a pattern is built by an efficient pattern maker by the use of plastic, metal, or wood. Polystyrene can also be used. The casting brass would get contracted during solidification. Non-uniformity can also result out of this. Therefore, the size of the pattern should be a bit larger as compared to the final product. ‘Contraction Allowance’ is the name given to this difference. Brass enters the mold cavity through a runner system including sprue and other feeders.

Molding box: A molding box having multiple parts (also known as casting flask whose bottom and top halves are called drag and cope respectively) is constructed for receiving the pattern. There may be an addition of sand to nullify the defects introduced due to the pattern getting removed.

Chills: To have a proper control over metallurgical structure and solidification of brass, plates of brass, or any other metal can be placed in mold. A hard structure may get formed at these places. Chills can be used for promoting directional solidification as well.

Design Requirements: The thing in making and the pattern corresponding to it should be designed in such a way that every stage of process can get accommodated. One should be able to take away the pattern without causing any disturbance to molding sand.

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How does the Lost Foam Casting Process Work

2008-09-25T07:54:00.011-07:00

Metal Casting

Lost Foam Metal Casting is a sub type of Investment Casting. This type of casting method uses foam pattern as the investment. This method benefits from the advantages of the foam properties helpful to make simple and cheap castings. These types of simple castings are impossible using the regular cope and drag method.

Here are the details of the Casting Process:

Foam Shaping: The original foam pattern of the Polystyrene is generally molded or carved.

Carving Polystyrene: What you want to do it to take either a traditional carving tool or one of the newer hot wire cutting tools to cut the formed foam. It can also be sanded easily.

Injecting Polystyrene in a Mold: Polystyrene contains pentane as a blowing agent and is commonly used for beads. The beads are pre-extended, stabilized and then blown into the mold to form pattern sections. A steam cycle forces the beads to expand fully, after this the fuse together and then it undergoes an in-mold cooling cycle. The final shape if very complex, then it is molded in sections. A cluster is formed by aging and gluing together the shaped foam sections.

Preparing Final Mold (Investment) for Metal Casting : Gates and Raisers are generally attached to the pattern, they are also the part of the casting as this helps reduce the shrinkage. If you think of how you are going to coat the foam you probably will want to use either pouring, dipping, or spraying as your method of choice. The reason for this coating is that it forms a barrier and helps to prevent the molten metal to penetrate or cause sand erosion while pouring. Structural integrity of the casting is protected thanks to the coating. The cluster when dried is backed up with un-bonded sand and is placed in a flask. Proper and uniform compaction is then achieved by performing mold compaction using a vibrating table. After all this process and after proper compaction, the mold is ready to be poured.

Automatic pouring is the preferred method in Lost Foam Metal Casting . This is the most critical process and also a bit difficult than the traditional foundry practice. As there are no parting lines or fins to remove the cleaning is easier and requires far more less time and operations in the Lost Foam Casting process.

Advantages of Lost Foam Casting: Due to its unique properties, foam is easy to carve glue and manipulate. It also provides accurate dimensions as Lost Foam Casting is more accurate and effective than sand casting. There are no fins or parting lines the finishing process is easy and less time consuming. The elimination of cores makes complex casting designs easy. Lost Foam Casting also allows us to control the wall thickness and thus no core prints are required thus eliminating shifts or fins and also saves the trouble of sand mixing and core defects. As there are no drafts multiple levels of casting is possible. Precise gate and riser replacements are achieved. Lost Foam casting becomes very helpful when you are trying to cast something that is very difficult with cope or drag mehtods as it will be much easier with Lost Foam Casting. Due to simpler process and easy finishing work, the process is very cost effective and lowers the overall price of the final product.

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Lost Wax Casting Process

2008-09-25T07:54:00.009-07:00

Metal Casting

Lost Wax Metal Casting is known as Cire Perdue in French. This is a very important process where a scuplture made by an artist is used to cast bronze. The Lost Wax Casting method is also known as Investment Casting in the modern industrial world. This is a very ancient method used for casting small bronze sculptures, but today it is used to make many different artifacts and the process varies from foundry to foundry. Today this developed method of Lost Wax Casting is used to make articles like fine jewelery, show pieces, dental restoration, a few specific industrial parts and also some machine tools.

Process of Lost Wax Metal Casting :

Rough Sculptor making: A creative artist makes an original sculptor or mold or an artwork by using raw material like wax, plaster of Paris or clay. A mixture of oil based clay and wax is preferred as these materials retain their softness.

When you hear the term Final Mold Making, you will then know that the mold is made as per the original sculptor. You are going to want to have your mold be made of up two pieces but you really need these two pieces to be put back together so you place a shim inbetween these two pieces. Molds are generally made using plaster or fiberglass or any other material that may be suitable. An inner mold of latex or vinyl or silicone is put pup preserve the details of the original art work. Generally, the original art work made of plaster mold cracks and breaks during the initial phase of deconstruction. Many a times, numerable molds are required to get the exact replica of the original art work.

Filling up the mold: Once the latex and plaster mold is complete and finished, molten wax is poured into the mold till it gets an even coating all around the mold. The thickness of the wax coating is around 1/8 inch. This process is then repeated until the desired thickness is achieved.

Removal of wax replica: The hollow wax replica of the original art work is then removed from the mold. In reality you can use the mold over and over for other wax replicas, but you may not want to do this due to the wear and tear of the original mold.

Softening: Each wax mold is then chased or softened using heated metal tools. The metal tools are rubbed around portions that show cracks or the joining line of the mold, where the pieces have come together. Separately molded wax pieces are then heated and attached. All of the imperfections will now be dressed since the mold is finished. The final piece then looks like a bronze sculpture.

Making paths for molten bronze: It is also known as “spuring”, in short the wax copy is then branched with treelike wax, so that the molten bronze reaches the right parts and also it helps the air to escape. The critical and careful spuring begins from the top of the wax copy. The top of the copy is attached to by wax cylinders to different points on the wax copy.

Slurry, burnout, testing, pouring, release, metal-chasing, and painting are the final steps in the process of Lost Wax Casting .

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Die Casting Information, Die Casting Defined, and Types of Die Casting

2008-09-25T07:54:00.007-07:00

Metal Casting

Die casting is the method used for forcing molten metal into mold cavities under high pressure. Die Casting is very versatile and hence, is the widest used method for casting a metal. Die casting is same as permanent mold casting the only difference is that the metal is injected into the mould at very high pressure of 10-210 Mpa. This results in a more uniform part, usually good dimensional accuracy and also good surface finish.

The different metals and alloys that can be used in die casting are zinc, aluminum, copper, magnesium, tin and lead. Ferrous metals can also be used for die casting, die casting method is generally used for applications in which a large quantity is medium or small sized parts are required with detail, good dimension and fine surface finish.

There are namely two equipments used for die casting cold chamber and hot chamber process.

Molten metal is a huge part of the cold chamber process as you get to fill a cold chamber of each module with this molten metal. The time exposure provided for the molten metal to plunge the walls of the mold is less. This clod chamber process method is very useful for metals like aluminum, copper and metals that easily alloy with iron at high temperatures.

Hot Chamber process: In the hot chamber process method of Die Casting , the pressure that is connected to the die cavity is forever and permanently in molten metal. As the plunger moves towards the open position that is towards the non - pressurized area, the inlet port connected to the pressurizing cylinder is uncovered.

The die casting molds which are used in this method are expensive and take usually take long production time. These die casting modules are also called as “dies’

Advantages of Die Casting: The method of die casting gives excellent dimensional accuracy. The dimensional accuracy is as good as 0.1mm for the first 2.5cms and 0.005 for the first inch. The thing about Die Casting is that is can also provide very smooth cast surfaces. Small and thin walls and can be made using the method of die casting walls as tiny as 0.75mm approximately can be casted. Inserts like thread insert, high strength bearing surfaces and heating elements can also be inserted using the Die Casting method. Metal Casting also helps in reducing or even completely eliminating the use of secondary machining operations. The use of Die Casting method also helps to reduce the production time and a huge number of articles can be produced in a very short time. Die casting method also helps to retain as well as increase the tensile strength of the metal. You can get great strength that is about as high as 415 MPa and that is about 60ksi.

Disadvantages of Die Casting: The casting weight is very less hardly between 30 grams and 10 kgs. Also the size of the material that needs to be casted using the Die Casting method needs to small say around 600mm. the high initial cost of Die Casting sometimes has people shying away because there is such a large investment to get started. Die Casting method makes the metal porous up to some extent. In the Die Casting method the thickest section needs to be less than 13mm or 0.5 inches.

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What is Metal Casting and how does it Work

2008-09-25T07:54:00.005-07:00

Metal Casting

Casting can be defined as a process of manufacturing, which implies pouring of a ‘liquid’ material into ‘A Mold’ containing a desired shaped hollow cavity, and then made to solidify. What needs to be done to finally complete the process is to take out the casting and break it apart so you can see your finished project. The use of casting is ‘forming hot liquid metals’ or numerous metals that are cooled after having the components like clay, plaster, concrete, and epoxies mixed. Complex shapes are normally made by casting, as other methods are not feasible. Casting came into being around 6000 years ago. ‘Copper Frog’ is the most ancient casting existing till date since 3200 BC. The process of casting has two distinct subdivisions: non-expendable and expendable mold casting.

‘Non-expendable’ mold casting: This technique is inclusive of at least 4 distinct methods: continuous, centrifugal, die, and permanent casting.

Continuous casting: Continuous DIY Casting can be defined as a refined process of casting for high-volume, continuous production of ‘metal sections’ with constant cross-section. The pouring of molten metal into a water-cooled, open-ended copper mold takes place. This allows a ‘layer’ of ‘solid metal’ to be formed above the ‘still-liquid’ center. Continuous casting is widely accepted due to its cost-effectiveness. The metals continuously cast are aluminum, copper, and steel.

Centifugal casting: Centrifugal Metal Casting is independent of both-pressure and gravity. This is because its own ‘force feed’ is created by the way of using a ‘temporary sand mold’ in ‘spinning chamber’ at 900 N. Lead time is variant with respect to application. True- and semi-centrifugal processing allow 30 to 50 pieces/hr. The batch processing has an upper limit of around 9000 Kg (practically). This method used to be applied for ‘Casting of Railway Wheels’. A company knows as Krupp is who it was developed by. It had a German origin. The thing that is most cast by this method is Jewelry.

Die-casting: Die Casting can be defined as a process of ‘forcing molten metal’ into cavities of mold under high pressure. The castings that we are talking about are really made of various types of metals such as aluminum, copper and zinc. It is even possible to make die castings of metal. The method of die casting is used where finer parts are needed.

‘Permanent Mold Casting’: This casting is made up of non-ferrous metals. It requires some time to set up (some weeks), after which the production rate of about 5 to 50 pieces/hour-mold is achieved. The coating of ‘acetylene soot’ is applied to steel cavities. This helps in removing the work piece easily and promoting longer life (of tools). Permanent molds possess a limited life span. For worn molds, replacement or refinishing is required.

Expendable mold casting: ‘Expendable Mold casting’ can be referred to as a standard classification inclusive of the following:

Sand casting: It is amongst the simplest and most popular casting types used since ages. It involves very small size operations. The bonding of sand takes place by use of clays (as in ‘green sand’) or ‘polymerized oils’, or ‘chemical binders’. Recycling is easily possible.

Plaster casting (for metals): There is no difference between plaster casting and sand casting, except the fact that plaster is used in place of sand. Similarly, there are also plastic and concrete castings.

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CRT Monitors

2008-09-25T07:54:00.003-07:00

A CRT Monitor is one of the most common types of computer monitors used today. The other most common monitor being the more recent invent, the LCD monitor. But what are the differences between the two models? How can you be sure that a CRT monitor is right for you? The main step is understanding the difference and the benefits of each type.

What is a CRT?

CRT is an abbreviation of cathode-ray tube. A CRT works by moving an electron beam back and forth across the back of the screen. Each time the beam makes a pass, it lights the phosphor dots on the inside of the glass tube. This illuminates the active portions of the screen, and by drawing many of these lines from the top to bottom of the screen, it creates the image or images you see on your computer screen.

Comparing CRT and LCD

Size-wise, the CRT monitor is much larger than the newer LCDs that are more compacted and lightweight. Due to the presence of the cathode-ray tube unit inside, adequate desk space must be allowed for CRT monitor that offers an added advantage of a larger viewing display size. LCDs, however, are becoming increasingly comparable in size to CRT monitors.

Many CRT monitors are able to display unlimited colors as well as multiple video resolutions. Both of these factors give CRT a leg up on LCD monitors that are limited in color capability and resolution. The CRT monitors can display multiple resolutions at the same quality while LCDs are limited to what is known as a Native resolution (the best display resolution).

CRT monitors generally do not have an issue with brightness due to the construction of the unit itself. The CRT also has the benefit of being able to be viewed from a very wide angle and from just about ever side.

While CRT monitors are generally cheaper than their LCD counterparts, the long-term costs of the CRT over the LCD are higher. CRTs consume much more energy than LCD monitors.

CRT Monitors in the Workplace

While LCDs have decreased in prices over the years, CRT monitors still have their fans in industry. The printing and broadcasting industry as well as other graphic fields (where higher resolution and viewing capabilities are needed) still use, almost exclusively, CRT monitors. Professional video and photography businesses are also still using CRTs because of the better color and contrast abilities.

Finding CRT Monitors

Deciding what type of monitor you purchase depends on your individual needs. Many major manufacturers of CRT monitors have discontinued or plan to discontinue production of these monitors. So, if you wish to purchase a CRT model, you may find yourself having to search harder than originally hoped. However, be diligent, even with the newer models of LCD monitors becoming available with new capabilities, CRT monitors still have them beat in many important areas.

Spyware: The Lurking Danger On Your Computer

2008-09-25T07:54:00.001-07:00

It is not always possible to know whether or not your laptop or computer has become affected by spyware since such malicious programs are something that remain in the background and go about their business in the shadows without letting you become aware that a problem exists with your personal computer or laptop.

Be Aware

Most of us are not even aware about what damage such software can do to your system and you may also not be aware of preventive measures to help block the presence of spyware, which makes matters worse. It is therefore necessary to look a little deeper into the problem and know what spyware actually is and how you can prevent it from disrupting the proper working of your system.

Spyware are essentially computer programs that plant themselves on your computer's hard disk and are known to come in different flavors and types, and they can also even jot down your browsing activities. These programs are able to also send such information to third parties while others will note down your keystrokes and then send sensitive information to people that should not have access to such sensitive information.

Certain types of spyware that are known as keyloggers can steal your password as well as username and provide this information to those who will take unfair advantage of that information. The internet is the most common way of getting spyware on your system--often when downloading software or other programs.

However, not all spyware is actually dangerous--it is nevertheless an unwanted risk that can do damage to your system. Therefore, it has become necessary that you learn how to protect your computer from such programs and your best bet would be to use certain specialized programs that are designed to identify and then rid your system of such unwanted intruders.

Spybot is one such computer program, which can help you keep your system free and your personal information well protected. You need to be aware of certain kinds of spyware that will try and fool you into thinking that they are actually anti-spyware programs when in fact they are not.

To fight the threat posed by spyware it would pay to look at the possibility of using spyware blockers. Of course, some spyware won't do anything malicious though others will try and do harm. It pays to ensure that you don't take risks and use whatever means are available to prevent your system from becoming corrupted by spyware.

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Creative designing and CNC artwork

2008-09-25T07:51:00.001-07:00

CNC Plasma Artwork

What I used to do…
Before I found design software I was in the stone ages. I would actually hand lay out a template on a piece of paper. Then cut it out. Next, I would tape the design onto a piece of steel and trace around it with a Sharpe Marker. Finally, I would cut out the piece I wanted.

No matter what, it was never exact.There was always something wrong. Things like wavy lines, gouges and “unique parts” were the norm. Measurements were never as exact as I would have liked either. That usually caused some fit-up issues, followed by some grinding. If you know anything about fabrication, grinding is the enemy of your time.

Why use CNC art design software?
I knew there had to be a better way so I found some design software to try out. Yes, it does take some time to learn. Think about it, like anything else in life, something that is worth it takes some time. This is also the situation of taking one step backwards to move ten steps forward.

Here are some benefits of using creative design software:
Saved file you can use over and over
Transfer the design to others
Can use exact measurements
Repeatability in design

Disadvantages of using design software:
Cost money
Takes time to learn
May not be the quickest way of making something if it is a “One Off”

My Definition of Design Software
If you are an engineer, you will probably consider Computer Aided Design Software as design software. That is true. But what I am talking about here is “Creative” Design Software. These software packages are used by creative types for print, web design and logo design.This software is great for creating artistic designs.
Design software can be boiled down to what it is good at. If you want to make a square with a hole in it or a triangular gusset, then CAD type design software works great. If you want to cut out a Cowboy on a Horse, then “Creative” Design Software is the only way to go.

Here are some examples of work for “Creative” Design Software:
CNC plasma art
CNC Machine Art
Signs
Engraving

CNC Information Free Community Site:
If you would like to know more about CNC, head on over to http://www.cncinformation.com
You can join and get two free CNC eBooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC art work when you join the free CNC community.

Gravity Casting and Information on What Gravity Casting Is

2008-09-24T10:51:00.001-07:00

Metal Casting

Research and development in Casting has taken an important step in making metal products a part of our day to day lives. The products used in homes, aircrafts, artifacts, automobiles have become more durable and less expensive. Cast alloy parts are formed by melting the alloy and then pouring it in a mold under heavy pressure or vacuum. Casting is also known as vacuum casting. It is a technique in which large diameter filaments are used with adequate separation. This ensures that no clusters are formed and also good metal wetting of the fiber is guaranteed. This technique was first used in 1970. The gravity casting method has advantages like cost effective, good quality, and process control over other casting techniques.

Gravity casting is done in ceramic molds, sand, permanent casting and also in investment or lost wax casting. The Metal Casting process was started with common steel after successful implementation it was further tried on heat resistance super alloys. With recent development and with more refined methods today even titanium alloys are being cast using the gravity casting method and using ceramic crucibles. The use of desired mold designs and also specially made unique designs enable a reduction in the metal cast to yield the given part. This also helps in reducing the amount of energy that is used in making such casting articles.

With new developments, today even computerized control of the vacuum pressure and rate is possible. What this does is to allow the person using the equipment to control the rate of fill. This makes casting of high quality metals like and viscous metals like metal matrix and composites of aluminum casting possible. This gravity casting method is used to produce casting worth of more than $200 million. The industry is expected to grow rapidly in the coming years due to the increase in production of automotive exhaust manifolds in stainless steel.

Howmet Industries was the first company to use this technology commercially. Because this technology was very precise, it was used quite a bit to design various parts for aircrafts. This technology is also being used by Ford Motors to develop and improve the casting process of light truck and automobile engine blocks.

Today, metal parts fabricated using gravity casting method is being used in 90 per – cent of all durable goods. Goods like stoves, washing machine, automobiles, refrigerators, lawn mowers, cars and even boats. Many other articles like badminton rackets, tennis rackets, and even football studs are made by using light weight metals which are gravity casting method. This gravity casting method has been used to develop metal alloy parts, which are used for the auto and airline industries, which is said to make vehicles lighter though much stronger and extremely efficient.

There are a lot of different metals that are used in Gravity Casting and these are casting grade iron and casting grade steel. Also die cast grade zinc can be cast using gravity casting method. Also other raw materials like sand, spin or plaster are used. Aluminum is also used, but it is very difficult to gravity cast aluminum a lot of care needs to be taken and proper pressure should be applied to obtain the desired shape and effect.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

How to Cast Jewelry, Casting Jewelry, and Cast Jewelry Information Described

2008-09-24T10:50:00.007-07:00

Metal Casting

Metal Casting is a process in which liquid material made from heating metals, is poured in a module, to give the liquid a desired shape. Then the liquid is cooled and a solid object in the desired shape and size is obtained. Casting Jewelry is the latest “in-thing” in the fashion markets. This jewelry is made from different materials like silver, aluminum, gold, bronze, alloy metals and even plated casting jewelry is available.

Casting Jewelry is very attractive and delicate. They are made using machines, but very finely crafted and hand made jewelry is also available in the market. This type of jewelry can be available at a very low, as well as high costs, depending on the design and material and design that you choose. Casting Jewelry is very fragile and should be handled with out most care as it can break easily. With the advent of casting jewelry, the fashion world has benefited a great deal. Today, free flowing designs, multicolored jewelry and even a special made to order jewelry is available in the market.

Before this, it was difficult to cast a metal in a desired shape but today it is as simple as it gets, all you need is a creative mind to create new designs and a group of well qualified workers and good machinery to make your own casting jewelry. This also gives you an option to make your own series of new designs. Casting jewelry is being widely used across the globe. With the prices of gold increasing day by day and with the entry of new metal jewelry like platinum, casting jewelry slowly but surely is making a mark in the fashion world. With the cost silver plated casting jewelry, the dream of wearing a new necklace or a new ear-ring everyday is a reality. You can actually afford new set of jewelry everyday. There are also costly models made of pure gold and delicate designs and with embedded diamonds that are available.

Metal Casting is not only about fashion, it has also opened a new avenue for small scale businesses. With proper knowledge and machinery, you can start your own company and make casting jewelry. Its nice because you don't need a lot of money or you don't have to use expensive material to get started. A small store room in your house will also be sufficient to set up your casting jewelry work-shop. You can then design your own range or hire a professional jewelry designer to create your range of jewelry.

Metal Casting has also helped the educational branch of “jewelry designing” grow considerably. Today it is considered in par with “fashion designing”. Many young students are nowadays looking at jewelry designing as a full time career.

The only draw-back of plated casting jewelry is that is they are used on daily basis, then they might lose their shine and the coated silver or gold respectively. If they come in contact with water regularly, then they can turn black. You can get them re-plated and use them. As casting jewelry is very fragile and delicate, even a slight mishap can change its shape or even break it.

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Metal Casting Furnaces and Metal Casting Furnace Types Described

2008-09-24T10:50:00.005-07:00

Metal Casting

There are several types of Casting Furnace which include Electric Arc furnaces, Blast furnaces, Cornwall Iron Furnace, etc. Below we will take a short and concise look at some of these.

Electric Arc Furnace: This furnace can be described as a furnace heating charged materials by the way of an electric arc. These furnaces exist in all the sizes-right, from the smallest one having a capacity of around 1 ton to the largest one having a capacity of 400 tons. The former one is used in foundries to produce cast iron products, whereas the latter one is used for secondary steel making. The ones used by dentists and in research laboratories might be having capacity of a few grams only. The electric arc furnace can have temperatures risen up to 1800 Celsius. A man in France named Paul Heroult was the first person to creat an electric furnace and the year was 1907. The commercial part of these furnaces was established in the United States of America. Electric Steel was one of the first special products that was used to make spring steel and machine tools. Calcium Carbide was also prepared in these arc furnaces. It (calcium carbide) was used in carbide lamps.

This Casting Furnace comprises of a refractory-lined vessel, normally water-cooled in huge sizes, having a covering of a retractable roof, through which the entry of graphite electrodes takes place. There may be many or there may be just a few. The furnace is divided into 3 sections: the shell, consisting of lower steel bowl and sidewalls, the hearth, consisting of refractory lining the lower bowl, and the roof, that can be water-cooled or refractory-lined, and can easily be shaped into a spherical section or conical section (frustum). A refractory delta is also supported by the roof at its center, by the way of which graphite electrodes make an entry.

The process of operation starts with delivery of scrap metal to scrap bay which is located adjoining melt shop. After that, the loading of scrap into huge buckets or baskets takes place. The next step is to carry this basket to the melt shop. Now is when the charging takes place here. The charging should be completed and then the electrodes should be allowed to be placed ont scrap. This causes the arc to be struck. Lower voltage is preferred for this part (of operation) to provide protection to the walls and roof against arc damage and excessive heat. After having the electrodes reached the heavy melt, shielding of arcs by scrap takes place. This enables a rapid formation of molten pool, thereby decreasing tap-to-tap times. Oxygen is also allowed to enter.

Casting Furnace : It can be referred to as a kind of metallurgical furnace, through which the process of smelting takes place. This produces metals, normally iron. These furnaces trace their origin to China (around 500 BC). They were also found in Belgium and England later. They do not have any special mode of operation. Heat and Heating is how the metals get melted. Generally, iron is melted in these furnaces. The chemical reaction can be explained as follows:
Fe2O3 + 3CO -> 2Fe + 3CO2

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Learn G-Code programming

2008-09-24T10:50:00.003-07:00

cnc tutorial

G-Code is the common name for the programming language of CNC Machines.Somewhat of a general, catchall term for CNC programming language. Very few machines adhere to this standard today. There are as many varations as there are manufacturers.

This is how I think of G-Code. It is a simple language built off of the Cartesian Coordinate System for motion control. That is a mouthful. I don’t know if that is exactly right, but you will get my meaning in a second when we go through some code line by line. You will remember your High School Geometry soon enough. For the real pros out there, you know there is much more to G-Code then that, but it is a good place to start thinking about it.

You will see many variations of the G-Code name like:
Gcode
gcode
G-Code
g-code
G Code
G-Code

Are there other “Codes?”
In a word…Yes.We will get to that information in just a minute. G-code is also the name of any command in a CNC program that begins with the letter G. G-Codes generally tell the machine to perform an action. G-Codes can tell machines to move a certain distance in the X-Axis for example.Or, make a quick move to another location. Or, move in an arcing fashion while milling. An on and on and on.

Here are some examples of G-Codes
Remember these codes change to a certain degree between CAM Software packages and CNC Machine Manufacturers.
G00 Rapid positioning
G01 Linear interpolation
G02 CW circular interpolation
G03 CCW circular interpolation
G04 Dwell
G20 Programming in inches
G21 Programming in mm
G28 Return to home position
G40 Tool radius compensation off
G41 Tool radius compensation left
G42 Tool radius compensation right
G43 Tool offset compensation positive
G44 Tool offset compensation negative

Why does G-Code Change?
We humans like flexibility. We also like standards. G-Codes are standardized in a certain sense. Once you start to be able to read it, you can read just about any flavor of it. That is the standardized part.
All CNC machines are not created in the same way. Even identical machines are different to a certain degree. They may not have the same tools loaded or they have been slightly modified to produce a certain type of part. Interesting how people like to customize.

That is why g-code programs are not the same. You need some flexibility in the programming to accommodate all situations. Couple that with the fact that every manufacturer thinks their version is the best and you get a myriad of G-Codes out there.

Many manufacturers also try to force you to only use their code. For example, they give you a design interface to make parts and a CAM interface to produce code. They lock you into their “Black Box” so you can’t go elsewhere for service and support. They lock you in their “Family.” Sometimes they make up a completely different kind of G-Code language that no one can understand but them. They do that to keep your hands tied up.

What is an M-Code?
M-Codes are related to G-Codes. M-Codes control different machine functions.Some of these different functions are turning the CNC machine off and on.Flipping the spindle on or off. Turning a plasma torch on or off. Turning coolant on or off. You get the idea. When programming your CNC machine you may need to perform these functions.
Like G-Code, M-Codes vary from manufacturer to manufacturer and from machine to machine. As you can imagine you would need an M-Code for turning a plasma torch on and off on a CNC Plasma Cutting Machine.You don't need an M-code to turn a CNC machine spindle on and off though. Hey, the machine doesn’t even have a spindle. It’s a plasma cutter!

do I need to be a G-Code expert when learning CNC

2008-09-24T10:50:00.001-07:00

cnc tutorials

In a word, no. You will probably need to know how to quickly scan your G-Code if you are having problems during your machining simulation. Other then that G-Code and a CNC program are throwaway programs for the most part. What do I mean by that? Let me explain.

Let us look at a very specific design. Let’s say a 12” by 12” square. You build your model, run it through your CAM Software and create a CNC Program made up of G-Code instructions to your machine. Say tomorrow the job requirements change to a 24” by 24” square. Do you go into your G-Code line by line and change the code?Most people would not. They would go back into their CAD or CAM program and scale the square up to 24” by 24”. Then post-process the job again to get their new CNC Program.

There are people lead do this editing line by line because their design is very simple. Now think of a complex shape and what scaling it up or down would entail. This would include massive changes to the G-Code and reviewing it line by line. We are talking thousands of lines here vs. going back and quickly scaling the model and spitting out some new G-Code. And that is why G-Code is throwaway. Use it over and over when you can, but don’t fret over archiving it if something changes. It is much better to make a copy of the design (CAD File) in its original state and save that somewhere. That is much more useful.

Post Processing??? - Now you have me worried. With all the variations in G-Codes and M-Codes, how will I ever keep it straight?

Don’t worry about that. The CAM program you choose will have many Post Processors. Post Processors are like translators. They help the CAM Program spit out the right G-Codes for your specific machine.What you have to do is select the right post processor before you create the G-Code. That is simple.

Most CAM programs have many machine specific post processors already loaded. All you do is go to the list of them and click on your machine to select it. If you build your own CNC Machine, there are generic post processors loaded for different types of machines. Usually you pick a generic one and modify it a bit with a little testing. You are making sure a move in the X-Axis positive direction really means what you want it to mean.

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Some Background History on Plasma TV

2008-09-23T09:47:00.019-07:00

When considering the history of plasma television screens, you have to understand the history that is behind this remarkable invention. The first plasma screen television has come quite a long way. However, the reason for the invention was not simply to provide men with amazing sports viewing.

The plasma TV developed as a result of the computer generation. It is incredible that the plasma based viewing device is not a new idea. It has been around for quite some time. Perhaps a bit of a history lesson is in order for you to understand how this application came to be available for the masses.

It all began in 1964 at the University of Illinois. At this time, computer monitors were simple televisions. You have to realize that the televisions at this time were cathode ray tubes. They had to continuously refresh themselves in order to display correctly. That was a big problem when using a television as a computer monitor. Sure it was okay for watching tv shows, but the resolution for computers was terrible. By the end of the year the first plasma monitor was in operation.

Today's plasma TVs have millions of cells that comprise the color and resolution of the screen. That initial plasma monitor was only one cell. However, it was still a step in the right direction. There was a set back, though. Liquid crystal displays became the more acceptable method and plasma technology was put on hold. Fast forward a few years and flat screen television sets became widely popular.

Where would the world be without technology constantly pushing it forward? Sure a plasma TV did not put man on the moon or allow for cell cloning, but it was a huge development at the time and has greatly affected the economy. Three years ago a plasma television 42 inch wide was considered only for the rich and famous. Today, many consumers can now afford to own one of these technological marvels.

Thank you scientists at the University of Illinois for bringing men and women everywhere the ability to watch games on a plasma TV. Where would technology be if necessity had not demanded you devise a new computer monitor? We would probably still be watching our big screen television sets and never knowing that a clearer picture was possible at a decent price.

To learn more go to Inexpensive Plasma Television and at Plasma Tv Media Storage

Plasma TV Buying Guides - Making The Right Informed Buying Decision

2008-09-23T09:47:00.017-07:00

Depending on the people that you talk to, there are specific aspects of plasma TV's that need to be checked out before coming to a final buying decision. One of the common mistakes that numerous potential purchasers end up making is in researching and reading through various plasma TV buying guides and then coming to a decision as to what they want. A good starting point is for you to list all the things you are looking for in your new television set and at that point you should take that information that is available in the plasma TV buying guides to locate the one that matches your list.

To start with, you are going to need to know the amount that you can afford to spend because there are numerous different types of models out there with functions that are similar that also vary in their prices. In some instances, one or two features might need to be overlooked in exchange for a better priced unit. Even then, wait to go through the plasma TV buying guides, you have other considerations to dwell on prior looking at your options.

Another important factor is the type of input that your television has as there are some plasmas that do not have the right connection for your needs. Even though a set-top box will enable you to get cable hooked up, by getting a cable ready set with your plasma TV you will save an extra monthly fee on the box from the cable company. Also take a look at the types and quantity of the inputs that are available on the different types of models that are within your price range for CD players, DVD players, games and even an old VCR if you happen to have one.

Make No Assumption That Prices Equals Quality

It is basically understood that plasma television costs are higher than the majority of other types of monitors. Even though this might be true to a certain extent, the prices have come down substantially in recent years and some now equal the costs of LCD televisions. In the majority of cases, a unit that is priced higher might have additional features, but the plasma TV buying guides can furnish you with the right information in regards to what is available with newer plasma monitors.

Does the plasma unit come with back light capability, normally found with LCD televisions or does it have the capacity to connect up to your newer surround sound system, are some of the considerations that you will want to check out in the plasma TV buying guides. In addition, are there mounting brackets for both ceiling or wall mounts incorporated or do they have to be bought as an addition separately?

Once you have gone through your plasma TV buying guides and have purchased the unit that has all the options bells and whistles etc., that you were looking for in a new television, and the cost is around your price point to your budget, you can start to look for an outlet for your new monitor.

To learn more go to Best Plasma Tv and at Plasma Tv Prices

Flat Screen Plasma TV Provides a Wide Range of Viewing

2008-09-23T09:47:00.015-07:00

At the time when flat screen televisions were initially introduced the technology that they were primarily based on were LCD and were made available in sizes that were smaller which were to be used in some television sets as well as in monitors for computers. These types of liquid crystal displays were ideal for laptop computers and the smaller sizes were ideal for other types of devices such handheld devices. Along with the launching of the flat screen plasma TV screen back in 1999, the television captivated world was sent into a mesmerizing shock.

Before the debut of the flat screen plasma TV the bigger sized screens were dominated by rear projection which also unfortunately had a limited viewing angle to them. The only way that a viewer could get a clear, sharp image he/she had to sit right directly in front of the unit. The majority of them were very big and bulky, some of them as many as four feet deep. Because of the limited viewing angle, they weren't valued by the majority of people due to the fact that they could not see the picture clearly.

With the arrival of the flat screen plasma TV and viewing angles in the range of 170 degrees, these bigger screens can be viewed by a much bigger audience while still being able to see a full clear picture. With the vast majority of the predated tapered versions of television screens, the picture frequently lost a good portion of it's detail close to the edges. With the newer flat screen plasma TV monitors, there isn't any loss of detail on the sides or towards the top and the bottom so the viewers can experience the full affect of the image being shown.

Size Matters In Terms of Diagonal Measurements

Back in the 1950's when televisions first made their introduction, the measurement back then of the screen frequently escaped most peoples logic. What the industry did was set the standard practice of taking the measurements on a diagonal manner. A 22-inch television was figured by taking a measurement from one edge of the screen to the other edge of the screen to arrive at the 22-inch mark.

When the measurement is taken at either a vertical or horizontal, the size was substantially less. Similar methods are utilized on today's flat screen plasma TV, however the majority of individuals have more interest in what is known as the aspect ratio of the image as well as the resolution that is presented.

The greatest difference in flat screen plasma TV's nowadays is the total size of the television. In terms of the older models, what is known as the cathode ray tube frequently was encapsulated within the case with as high as two inches on the sides. Even in a case like a 21 inch screen having measurements of roughly 16 inches wide, the case might still need as high as 22 inches or even more. A flat screen plasma TV monitor will typically be just an inch or so bigger than the total width of the screen and a lot more space is conserved because of the thickness of roughly four inches.

To learn more go to Plasma Tv Reviews and at Plasma Tv Problems

Lotro Guide

2008-09-23T09:47:00.013-07:00

For the dedicated game player there are many Lotro guides which they can use to help in the game play. These can be found in many places although some of the best Lotro guides are at Lotro Mastery at http://www.lotromastery.com.

To find other guides, it's just a simple matter of doing a quick search on the internet for Lotro guides and choosing a few which look promising. You can even continue to do this until you find the sites which satisfy your Lord of the Rings Online needs.

A guide is also what is called a walkthrough and to find more on the subject all you need to do is to do a search for this as you would for a Lotro guide. They will ultimately yield up the same or similar results.

Lotro guides are good in that they can help you find your way through the many quests, lands and towns of Middle Earth without putting you to too much trouble. These are not in the way of cheats or exploits as they only help you through the various parts of the game.

They are in effect, detailed descriptions of how to get through certain portions of Lotro, and they have been compiled by other gamers such as yourself.

You will find Lotro guides for just about everything that you can think of, with the most popular being that of how to get gold. If you look, just about everywhere you will find that there are references to obtaining lotro gold.

With a Lotro guide however, you can go about these in a legitimate manner without having to resort to hacks and cheats. Lotro guides can also help you to level up faster as you can by taking advantage of the other gamers experience and knowledge of Lord Of The Rings Online.

If you spend even just a little time away from the game and pay attention to some of the Lotro guides you will find that you can progress far easier through your quests than if you went into them ignorant of what lay ahead of you. Then again, that is part of the fun, being able to explore the game on your own.

Learn about the Induction Furnace and More

2008-09-23T09:47:00.011-07:00

Casting

In Casting , the type of furnace you have at your foundry, or workshop determines a lot of the work you can or can not do. Since the beginning of time, people who enjoy casting have been making their own furnaces. The plans for home made furnaces are eagerly shared among the enthusiasts so finding blueprints and instructions should not be difficult. But before you rush off to find the blueprints you may want to take time to learn about the types of Casting furnaces available to help determine which one will suit your needs. This is not saying that you should only have one furnace at any given time, but this way you will know what project will work best for which furnace.

Cupola

Cupola furnaces are among the most popular with backyard foundries. Many casters construct their own cupola which proves to be cost effective and highly efficient if done properly. Since cupola furnaces can achieve high melting temperatures they are primarily used for the melting of iron and bronze, though aluminum can also be melted when attention is paid to keeping the temperature low. The primary fuel source for cupola furnaces are coke using limestone for flux.

By not using a crucible, the Cupola furnace is able to melt the metal at a faster rate. While individual designs of these furnaces differ due to varying resources and design ideas, the basic component of a cupola furnace is the same. The cupola furnace must be elevated above the ground and installed with a drop bottom usually hinged, which will allow the excess metal, fuel source, and other waste to drop from the furnace. You will need at least two types of shafts, ladle shafts and air shafts and they both provide similar outlets for air and metal. A slag tap hole can be placed on the furnace usually in the back, higher then the tap hole, which will allow the slag to flow out easily.

With most small home foundries, the cupola furnaces are preferred over that of other furnaces for its high melting rates and for how easily the construction of such a furnace can be.

Reverberatory

The Reverberatory Furnaces are commonly found in industrial plants but there have been quite a number of home grown foundries that have used this furnace type with much success. The basic idea of a Reverbeatory Furnace is to use the heat reflecting off a surface, usually brick, to heat the metal, which is aluminum in most cases. This way, the metal does not come into contact with the fuel or the flame. Its commonly known that the process is also used in Puddling Furnaces. The name Reverberatory and Puddling are often used interchangeably. By placing the metal in a shallow depression and then directing an intense flame over that depression and to the wall, the heat rebounds to melt the metal. The length of the flame is one thing that many metal casters will control because then the heat can be controlled better.

There are many designs for the reverberatory furnace, all of which will include exhaust ports and the rear of the furnace must be able to withstand the intense heat and be able to bounce it back into the chamber.

Bronze, aluminum, tin, and many other ores can be melted in a reverberatory furnace all depending on the construction of the actual furnace and the heat of the flame. This type of furnace has been around since at least the Middle Ages and was used primarily for bronze work.

Electric Arc

Electric Arc furnaces are normally used in Industrial foundries. Most hobby casters do not use these furnaces due to cost, space issues, and a general inconvenience. There are two forms of the electric arc furnace, the direct and indirect.

The direct arc has three electrodes which are used to heat metal by way of the arc. This creates an incredible amount of heat and so water jackets and other cooling devices will be needed for operation.

The thing thats different than the direct arc furnace is that the indirect arc only uses one electrode otherwise they work the same way.

Electric Induction Metal Casting

Electric Induction furnaces are becoming all the more popular with large industrial size foundries that enjoy the clean burning and efficiency of an electrical furnace. Copper coils surround the crucible with the metal inside which can reach extremely high temperature suitable for melting most metals.

Rotary

The Rotary style furnaces are hailed for their ease of use being fully or at the very least partially automatic. These furnaces tend to be harder to construct though there are resources and companies online that sell rotary furnace.

The different furnace types do affect the quality of the work being produced, so it is important to keep that in mind as you cast. With a little trial and error, you should find the perfect furnace to fit your needs so you can start building one of your very own.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Stop Around MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Information on Metal Casting Clubs

2008-09-23T09:47:00.009-07:00

Casting

Metal Casting has endured through the ages since the time of Ancient Egypt, possibly longer. Since then small foundries have developed to meet the needs of the individual caster. There are several reasons that people choose to create their own home grown foundries. A top reason is the need to create parts and pieces that are no longer available on the market or that are just too expensive to purchase. Those who get into Casting for this reason are usually interested in restoration projects, home improvement projects, or hobby building like model planes and trains. Artists are the other group that see metal casting as a cheap and easy way to create sculptures from small to large. Jewelers even use metal casting to create complex pieces that would just otherwise be impossible to create.

Given the wide scope of metal casting there are several methods and techniques that have developed. For those new to metal casting or for those wanting to try some of these other methods may find it difficult to find information on your own. Luckily, there are several metal casting associations and groups that are more then willing to share information and exchange ideas, projects, and pictures of the goings on in the their home foundries.

On the internet, Metal Casting associations and groups are either message boards full of casters where they can ask questions, post ideas, and pictures or are websites that are maintained by a set group of people offering general information and educational resources.

Both of these types of websites are incredibly helpful to metal casters who can benefit from the educational purposes of some of the sites tempered with the real life applications and experiences of the message boards.

The majority of the information that will be easy to find will be geared at industrial and manufacturing foundries versus the small home foundry. Industrial metal casting sites can be wonderful sources of information so do not skip by these. Use both small metal casting sites and industrial sites to your advantage.

Yahoo Groups usually has some of the most popular group sites for hobbyist of all kinds and the Casting Hobby Group is no exception. This casting group was developed and maintained by experienced metal casters and enjoys a high amount of activity. This is a great place to go to for quick information and ideas not to mention photos and even furnace building plans.

The Casting Hobby Group can be found at http://groups.yahoo.com/group/castinghobby/

The Association of Backyard Metal Casters is located at http://www.abymc.com/. This online metal casting association has an extensive membership complete with informative articles, forums, and even live chat. Of course, pictures are posted on the site to give visitors ideas about what other furnaces and foundries look like. Don't worry if you're foundry isn't pretty, there actually doesn't seem to be very many of them that are.

Now, The American Foundry Society is mainly for the industrial metal casters and companies but they also promote information and education to consumers. The information provided on the site is great for anyone wishing to follow advancements in metal casting technology. There is even an online store.

http://www.afsinc.org/ is the online home for the American Foundry Society.

For the most part metal casting associations and groups exist on the local level more than a unifying force on the web. What does exist on the web is a great source of information, ideas, and insight. It is a great idea to join any of the groups you can in order to share and find knowledge.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Stop Around MetalCastingZone today to get your free reference guide on Metal Casting just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Bronze Metal and Bronze Casting Described

2008-09-23T09:47:00.007-07:00

Metal Casting

Metal Casting has been practiced for centuries. Many civilizations have used this alloy for weapons, sculptures, and general pieces of hardware. The popular way to cast bronze is the Lost Wax Casting process which was first used sometime in the 3000 BC near ancient Sumeria. The Lost Wax process is still used to this day and its modern equivalent Investment Casting is very popular with jewelry makers.

Bronze is the preferred alloy for metal working artists as it's relatively easy to work with and resistant to corrosion. The properties of bronze tend to be stronger than most other alloys, except of course for steel, and lends itself easily to the molding and casting process. Many small foundries like the kind that can be found in a backyard or workshop find that bronze is a great material to work with and with a melting point of 1,700 Fahrenheit or about 925 Celsius many homemade furnaces are able to melt down the bronze quickly and efficiently.

Many modern day artists create their own furnaces with the metal casting in mind. These metal casters employ the Lost Wax Casting method which proves to be the best when dealing with the alloy. The Lost Wax Casting is making an original of the sculpture from wax and then creating a mold using this original. Often times the original is lost during the mold making process so keep that in mind if you want to hang on to the original for whatever reason. Molten wax is poured into the mold which is chased or smoothed of imperfections. During this point, any other pieces are attached and small wax tubes are placed into the piece. These tubes will be how the molten bronze is going to travel into the piece replacing wax with the alloy. When this is complete the artist will create a ceramic shell around the wax model. The real benefit of the shell is that it will help form the melted bronze which will in turn help to melt the wax. When the molten bronze is poured the bronze takes place of the wax. Afterwards, the artist will crack the shell and reveal the bronze piece. This method allows the transfer of very exact detail from the wax to the bronze.

Patina is added to the figure at the artist's discretion. The Patina is a chemical that when applied to bronze creates colors and makes the bronze take an aged look. The Patrina compounds used depends on the type of color desired. Ferric Nitrate will make the bronze take on a red or brown color while Sulphurated Potash will make black and Cupric Nitrate will create blue and green. Modern day artists choose to go with a very high polished bronze instead of using these compounds. This step depends solely on the artist’s taste and the look they are going for.

Metal Casting will remain a popular medium until another alloy is developed that exhibits properties that are easier to manage and are more resistant to corrosion. Casting the alloy is easily done so metal casters that want to experiment are encouraged to do so. Making anything from small figurines, large sculptures, and even cabinet handles can be accomplished with the use of bronze. The only limitations in Metal Casting are with the caster himself.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Stop Around MetalCastingZone today to get your free reference guide on Metal Casting just for signing up! Stop by the website MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Brass Casting TIps

2008-09-23T09:47:00.005-07:00

Casting

Brass is a great metal to cast with as it can provide some really great looking results. Many believe that brass, an alloy of zinc and copper, has been around since our prehistoric ancestors. You will find brass today is a lot of musical instruments including trumpets and of course the penny's in your pocket are made of brass.

The low melting point makes brass a really great material for metal casting since even the smaller home grown furnaces can be used. By adding and subtracting alloys from bronze one can successfully make hard or soft bronzes. Aluminum and tin are sometimes added to bronze to create a layer that is not corrosive and very durable. People using these types of foundries at home will find that you don't have to be a scientist to find casting material as scrap will work just fine. Locating scrap pieces of brass should be sufficient enough for whatever project you have in mind. Due to brass' gleam and yellow shine, many artists will use the alloy for sculptures, jewelry, and other decorative items. Other metal casters may choose to use brass for general hardware needs or vintage car restoration, and of course, whatever else they may choose.

Generally there are three casting methods that prove to be suitable for Brass Casting . The nice thing about metal casting is that there are so many methods to experiment with and that casters don't have to be locked into one method or technique.

Brass Casting casting is usually associated with bronze casting but can also be used for brass and for really any other metal. By using a wax model and covering it with a ceramic shell, artisans are able to inject the molten alloy which replaces the wax. The brass piece will be shown once you start to chip away at the shell. Lost wax casting is used when a high attention to detail is needed. Artists or metal casters looking to create decorative brass pieces or sculptures will find that the lost wax casting technique will meet their needs far better than other techniques and methods.

Die casting is yet another method used for Brass Casting . Die casting is normally used in commercial foundries since the initial start up cost is undesirable for the smaller home foundries. By using a reusable mold created from steel, the caster will be able to create scores of identical products. Die casting with brass should be used if the caster or artists is planning to make multiples of one product and can find a viable market for those pieces.

Sand casting is probably the oldest type of casting and is still a popular method especially for small foundries. The brass is poured into sand molds and can create a unique look which may be preferred for the artisans. Sand casting tends to be the most economically sensible for small foundries and if the casting does not have to be incredibly attractive then this method is preferable for many.

Whichever casting method is used for casting the brass really depends on the individual. Many find that casting brass to be fun and easy since it does melt rather easily. A large expensive furnace is not a requirement when casting brass so first timers using small home made furnaces will find this alloy attractive. Many have even been able to melt brass in small ceramic pots using charcoal!

Some ideas of what to make with brass include candle holders, plumbing fixtures, and even musical instruments

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

{You Might Be Very Wrong About Your Previous HDTV Knowledge}

2008-09-23T09:47:00.003-07:00

{In the first place, the splendor with HDTV and why numerous individuals are in love with it is that it reliably gives one the feel of being at the movies when looking at films using an HDTV; no wonder various folks continue to speak about the wonderful HDTV technology. Whether what you’re fascinated about is wide screen real-life form of pictures that are crystal clear to view or excellent quality sound output, HDTV will certainly give you the best of both worlds, right in the serenity of your house.}

{When I initially found out about the HDTV, I was told I could see a spot on the face of somebody on screen but I couldn’t believe it, but when I had my HDTV I was thrilled that not merely was this possible, but I was able to even see far more than that, unlike what's probable with a usual television.}

{There’re distinctive electronic discount super markets that sell HDTV matched television, HDTV satellite TV dish or antenna and other such needed equipments at discounts; utilize the Web to look for them and do your shopping at discounts. $29.99 each month can offer you HDTV viewing of 155 channels with DIRECTV subscription.}

{Many persons confirm that they’re able to get inexpensive HDTV from wholesale online sites; it may perhaps be a good idea to check out this source also when on a quest for affordable HDTV.}

{Even the PAL formats and also NTSC formattings for television standards cannot be likened with the HDTV which is certainly the astutest amongst all the other TV formats as regards quality of pictures.}

{To close, when you go out buying your awesome HDTV, it’s expedient to also examine purchasing a really astounding surround sound package; both of these’ll actually turn your home into the perfect "viewing paradise"!}

HDTV are the new tend. Let's face it, TV's are and essential part of every home. Come see what you can learn about HDTV's

Information on Art Casting

2008-09-23T09:47:00.001-07:00

Metal Casting

Metal Casting is one form of excellence, put with diverse craft skills. It should be perfect and graceful at the same time. One should have unique craft skills which can produce a perfect art casting. There are several websites which can provide a person with information on art casting technique, their sculptors and the craft skills which are required to be a sculptor.

The websites that showcases the Art founders combines to provide advanced foundry techniques and similar superb craft skills. One can thus understand the sculptor’s needs and vision after viewing the art form. Exhibitions, Galleries, and Museums were the normal places you used to see these sculptors. Even today, at large the sculptors are used in public places, galleries and such art casting are made out of modern equipments and casting techniques.

Types of art casting: There are many types and kinds of art casting. Wax art casting, sand art casting, lost wax casting and many more. These websites that offer a client the art casting images and its services, offers concept design, Marquette works and enlargement of certain sculptors. The creative department has created new work for their clients and have provided enlargement of the miniature sculptures.

Typically, an assignment would begin with the concept stage and wherein the creative department makes drawings for approval. After this, a Marquette is done and the scaling procedure is done to work up the required size and alignment of the sculpture. Such work undertaken is done under one roof with involvement of clients who accompany in decision making of the design, creating stage and also through out the casting and finishing of the sculpture. Some of these websites are full service in the fact that they help their customers will complete installation and a delivery of the sculpture to anywhere in the world.

Lost Wax process: Most of the art casting of lost wax is processed by use of lost wax ceramic method of casting. This can make it a possibility of reproduction of maximum detail from original concept. Such facilities can make the sculptors to keep the original core in mold and allow the production of the largest wax in the country. A perfect cast is very much demanded by the clients. Smaller works like the abstract works, animal figures and many more are designed on such department. These wax shops are bright with daylight bulb.

Sand casting art form: The Metal Casting shops which focus on making sand sculptures use sand pieces and they make sure that there are deep undercuts on the making process. The team which undertakes the process are experienced and they strive to create some of the magnificent works that ranges from life size horses to full sized boats and such letter signs. A lot of the works with right to sand casting provide great dimensional stability and less reduction of metal.

Strengths of the art casting work shops: One of the key strength of the Metal Casting shop is the depth of skill set and experience in the department. The Bronze one's are collected and finished by master craftsmen. One of the most important parts of the whoe art casting process is the final touch up process. These workshops provide lots of patinas and colors which a client may require right from traditional browns and green to blue, white, black and red color.

Metal Casting Zone is the place to be for your one stop shop for a community about Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Plasma TV Prices - Staying Alert As They Stop Like a Rock

2008-09-22T11:48:00.013-07:00

The initial plasma television to hit the consumer market was the 42 inch version, having a nice beefy price tag of roughly $12,000. At the time the technology was still very new an on the cutting edge and while LCD TV sets have been giving flat screen, enhanced color television pictures for many years, they were still limited in their size to about 32 inches. When other producers started to getting into the competition for a share of this up and coming market of plasma TV's, then prices started to decline.

It is quite normal to see any type of newer technology that is first introduced to be priced very high, while the manufacturer is hoping to quickly get back some of it's development costs and by being the first to the market with a new technological toy for the grown ups and kids alike, they have the ability to make up a good amount of their initial investment. Nevertheless, the manufactures of LCD's were not just staying idle when watching the plasma TV prices end up at the higher end of the technology charts.

As manufactures of LCD monitors, who at the time held a very tight reign on the smaller television and computer monitor market started to develop improved manufacturing technologies giving them the ability of making larger monitors, plasma TV prices began to drop even quicker, in part due to added competition and also because of less expensive manufacturing methods.

Not Every Plasma Is Created Equal

Even in the face of falling prices for TV's, you will still find some inequality within the plasma TV market itself. Consumers might also end up confused when they notice a big difference between two major plasma TV prices, in the belief that all plasma television sets are high definition. Primarily this is not the situation and the difference can be substantial which is dependent on the quality of the manufacturer.

You will find that there are in reality two technologies that are used in the resolution of plasma televisions, one kind is the true high definition and the other is what is known as enhanced definition.

For the individuals that have a plasma television which is enhanced definition, the quality of the picture likely will not be noticeable when viewing broadcasts that are not in a format that is high definition. What they will notice is a big difference in the plasma TV prices for those particular units.

High definition, which is defined in the industry as having a height of 720 pixels in width, might also result in a difference in plasma TV prices for those that have a width of 1040 up to 1365 pixels. The bigger monitors will typically have a wider count in pixels for a true high definition resolution reception of broadcasts that are high definition.

While images that are high definition on a monitor that that are broadcast in high definition are noticeably better, a monitor that is high definition cannot make an image of lesser quality look any better. Even with prices being higher on plasma TV's on some units, provided that the unit is sub-par, so will be the picture of quality.

To learn more go to Best Plasma Tv and at Refurbished Plasma Tv

World Of Warcraft Strategy Guide

2008-09-22T11:48:00.011-07:00

If youíre one of those people who are super organized and who wonít move a pencil out of place on their desks, then there ís a good chance that you would prefer to go through the World of Warcraft game with a good sound World of Warcraft strategy guide at your fingertips.

Unfortunately to actually do this you need first to go through the game. Which kind of defeats the purpose, if you go to think about it.

However, help is at hand in the form of guides and walk throughs which have been compiled by other people who have already gone through World of Warcraft themselves.

You will normally be able to find one or two guides which can help you to build up your very own World of Warcraft strategy guide to help you through the game. You will want to think first about where you want to go and how you want to go about it.

For instance, many of the existing World of Warcraft strategy guides involves the strategy of getting as much gold as you can, because you guessed it, gold pieces make the World of Warcraft of go around at a much smoother pace than if you didnít have as much gold to your name.

You will also be able to find out which are the best quests to take, and which ones will give you the most trouble. With a World of Warcraft strategy guide with you as you go through the lands of Warcraft you will also be able to find the best spots for fishing (yes, you read that correctly!), and the best spots for mining.

You will also find at hand, little details like the fact that some objects in bodies of water donít actually turn up on your personal map, until youíre actually in these bodies of water!

You can also use the expertise of these other people with their own World of Warcraft strategy guide, to help you build up your own one where you can also add more information which these guides might not have contained.

The proper use of a World of Warcraft guide will also help you to pass through the levels faster, meaning that you level up at a faster. This means that you wonít be stuck endlessly at level 10 or 15 grinding away.

And the best part of these World of Warcraft strategy guides is that they are not cheating nor do they use hacks. Instead they rely on the experience of the user writing them to help you through the various levels.

World Of Warcraft Guides

2008-09-22T11:48:00.009-07:00

Wow Guide

For the dedicated game player there are many World of Warcraft guides which they can use to help in the game play. These can be found in many places although one of the best World of Warcraft guides, called World Of Warcraft Mastery, can be found at http://www.wowmasteryguide.com.

This website contain pretty good World of Warcraft guides and you will find that they are very informative as well. This site aside you will also find that you have a staggering number of other websites to choose from if youíre interested in finding World of Warcraft guides.

Itís just a simple matter of doing a quick search on the internet for World of Warcraft guides and choosing a few which look promising. You can even continue to do this until you find the sites which satisfy your World of Warcraft needs.

A guide is also what is called a walkthrough and to find more on the subject all you need to do is to do a search for this as you would for World of Warcraft guides. They will ultimately yield up the same or similar results.

World of Warcraft guides are good in that they can help you find your way through the many quests, lands and towns of Warcraft without putting you to too much trouble. These are not in the way of cheats or exploits as they only help you through the various parts of the game.

They are in effect, detailed descriptions of how to get through certain portions of World of Warcraft, and they have been compiled by other gamers such as yourself.

You will find World of Warcraft guides for just about everything that you can think of, with the most popular being that of how to get gold. If you look, just about everywhere you will find that there are references to obtaining gold.

With the World of Warcraft guides however, you can go about these in a legitimate manner without having to resort to hacks and cheats. World of Warcraft guides can also help you to level up faster as you can by taking advantage of the other gamersí experience and knowledge of the World of Warcraft.

If you spend even just a little time away from the game and pay attention to some of the World of Warcraft guides you will find that you can progress far easier through your quests than if you went into them ignorant of what lay ahead of you. Then again, that is part of the fun, being able to explore the game on your own.

Spyware Removal Tools What To Look For

2008-09-22T11:48:00.007-07:00

Computers which crash on a frequent basis can be very frustrating when we have taken measures to prevent them from crashing. Certainly, all the information technology that is at our disposal is used, but this doesn't necessarily help us. Staring a system off clean and requiring password access is usually the first step.

Then the programs that are needed for the business and the owner are uploaded, and these files are double checked to make sure they did not include any nasty secondary programs. An additional precaution is that any availability to the internet should be severely limited, as to prevent the downloading of harmful programs or connections that will bring additional problems.

While company email and networks are open to most workers, programs like internet messengers or online shared programs are not, which goes a long way in ensuring the productivity of the workforce. Truthfully, it is impossible to prevent employees from using office computers to chat or download files not related to office duties. Cyber industry's major pain is actually spyware and or adware, something that can cause major problems for your business.

Once the internet and computer industries began booming, spyware was not far behind them, the negative ramifications predictably following the positive ones. Sometimes negative actions become so popular that a large swell of people will choose to take part in these negative actions.

Though the person behind spyware may be a genius, they are also a traitor to all the victims, many of whom are unaware of its existence until it messes up their system. Spyware gathers information about a user without them knowing or consenting, and there is certainly nothing right with these actions. The tools used to accomplish this privacy invasion are, unfortunately, completely proliferating.

This software works by sending advertisements to pop up on your system, and material will be downloaded on the system whenever you try to close the ad or type anything in the box. This is a difficultly reality to get out of, and the best you can hope for is that the people responsible can be tracked down and made to stop their nefarious actions. Illicit programs and malware can come bundled with the legal programs and services of an entirely different company.

Though there are many adware spyware removal programs, their efficiency in removing adware or spyware is flimsy at best. You may find an adware spyware removal program that works, but you have a much greater chance of finding one of the dozens of con spyware removal programs that function instead as additional spyware waiting to be downloaded onto your system. Any adware spyware removal program that you have your sights are should be thoroughly researched, and once a keeper is found, that adware spyware removal program should be held on to with dear life, for they are rare specimens indeed.

The definition of Metal Casting Crucibles

2008-09-22T11:48:00.005-07:00

Metal Casting

A pot in which metal is held, while melting in a furnace is called as a “Crucible.” It is made of silicon carbide and clay graphite.

Shapes of a Crucible: One shape of a crucible is the shape of a barrel and this type of Crucible is called a Blige Shapped Crucible. The part of the crucible in the middle region is called as a bilge. This is the widest part of the crucible and has the maximum diameter. The top of the Metal Casting crucible has lesser diameter than the bilge. The base of the crucible has lesser diameter than the top. As per a thumb rule, the # of a bilge crucible is the number of pounds of aluminum that it would hold. For bronze and brass, thrice the # can be held. For instance, a #5 bilge crucible can hold almost 5 pounds of aluminum and 15 pounds of brass. This thumb rule is applicable for bilge shape only.

If you are looking at an "A" shaped crucible, you will see that it has a narrow bottom and a wider top so that it looks like the shape of an "A". What these are tend to be mostly straight sides and then these straight sides are bent outwards. The diameter continuously increases from the base to the top. As it is simpler to manufacture this shape than the bilge one, the A shaped crucible has a lesser cost. When compared with the equivalent bilge style, the capacity of the A shaped crucible is lesser.

Both the above mentioned shapes can be manufactured in Clay graphite and silicon carbide.

Properties of crucibles: A crucible must be able to bear the extremely high temperatures of the molten metal. For this, the melting point of the material used to create the crucible must be more than the melting point of the metal that in placed in the crucible. Also, the crucible material must have excellent strength even in the white hot state.

For melting metals like aluminum and zinc, a steel crucible made at home can be used. The reason is that the melting point of aluminum and steel is lesser than steel. In this case, the interior surface of the steel Casting crucible undergoes flaking or scaling. Due to this scale, the molten metal is polluted. The thickness of the crucible walls decreases fast. Hence, a coating of marcote-7 is applied to the inner surface of the steel crucible. The use of steel crucibles is okay if the contamination due to the scales is not regarded serious.

Materials used: To construct a Casting crucible, the usual refractory materials (i.e. carbon bonded silicon carbide and clay graphite) can survive the extremely high temperatures of work of a foundry. In addition, silicon carbide is a very durable material.

Some of the clay graphite crucibles can be used up to 2750 degrees Fahrenheit. Some A shaped crucibles are used up to 2000 degrees Fahrenheit. These crucibles can be used to handle gold, silver, bronze, brass, aluminum and zinc alloys.

The A shaped crucibles have a rough surface finish and there are dents along the rims. However, this roughness does not interfere with the performance by any means.

Tongs that are correctly fitted are very important when you are handling various crucibles. In correct tongs can lead to damage or total failure of the crucible. There really must be a piece of the cardboard that is inbetween the base of the furnace and the crucible.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Types of Iron Casting

2008-09-22T11:48:00.003-07:00

Metal Casting

Iron Metal Casting can be referred to as products made out of melted iron molecules. These molecules are, first, poured into mold and allowed to cool. They are then extracted. The casting properties depend a great deal on the foundry practice. They also depend on the cooling rate. Iron contains huge carbon concentrations. This content facilitates melting, simplicity of casting, and machining. Iron casting designs have a great variation owing to the property of iron to resist shrinkage during the process of cooling. The end product attains a great reputation for its strength and durability. Tensile strength ranges between 20,000 psi and over 60,000 psi. The values of hardness (without heat treatment) range between 100 and 300 BHN.

Some factors need to be considered while buying iron Metal Casting . The first thing on the agenda should be, checking the quality of foundry used in products and procedures. This should be done because foundry practices determine the casting properties. The consumer might have a tough time in finding the apt one. Secondly, the concentration of carbon should be looked into. The percentage of carbon commonly ranges between 2.5 and 4%. An addition of even 0.Decreasing the tensile strengh by around 2700 psi is caused by just 1%. As youo can imagine, each foundry is run very differently which means that their casting procedures will be very different if compared to one another.

Green sand molding is the most commonly used type of Casting . Normally, small and medium sized products are produced using this type of casting. Shell molding is preferred for bigger applications. Shell molding facilitates cooling of the mold containing heated metal. This process gives a better finishing to the final product as compared to all the other processes. Centrifugal casting is used for producing big cylinders and pipes. Both, producer and consumer would get highly satisfied if a proper blend of correct casting process and reputed foundry is made.

Iron castings are utilized extensively in machinery, automotive, and agricultural industry. Parts such as turbine and pump housings, dynamometer bases, compressors are made out of iron castings. Majority of manufacturers have the caliber to go for high and low production outputs. They are also entitled to go for short order runs. There are standard prototypes ensuring customer satisfaction and accuracy. Some manufacturers provide finishing services like galvanizing, painting, and machining as well. In general, iron castings include alloy casting, ductile castings, and malleable castings. There are some terms relating to iron castings. They need to be known in order to get a fair idea of iron.

Brinell Hardness Number (BHN): It can be defined as the method used for measuring the hardness of iron. For iron castings, a metal ball of 3000Kg is put on a flat iron piece. After the removal of ball, indentation observed is recorded. This measurement indicates the value of hardness.

Tensile Strength: Tensile strength can be defined as the quantity of bending and stretching undergone by a material before tearing or breaking. Here the metal is iron.

Modulus of Elasticity: It can be defined as the ratio of stress to strain. This value determines the elasticity as well as the stiffness of the concerned material.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

DIY Casting Furnaces at Home and How to do It

2008-09-22T11:48:00.001-07:00

Metal Casting

DIY Casting Furnace are nothing but Do It Yourself casting furnaces. One can make variety of furnaces. The procedure of some of them can be described as follows:

DIY Casting Furnace : Theoretically, only three things are required for implementing induction heating: High frequency Electrical Power Source, work coil for generating an alternating magnetic field, and a workpiece-electrically conducive. When you take a look at the practical approach, it is extremely complicated. For instance, the work coil and High Frequency source’ should have a matching network in between, to obtain better power transfer. Use of water cooling systems is very common in induction heaters of high power. This facilitates removal of waste heat from the matching circuit of the work coil and the coil itself. This process involves application of control electronics as well. Control Electronics, as the name suggests, controls the heating action’s intensity, thereby ensuring consistent results. Really you are getting protection from bad working and operating conditions.

Usually, the incorporation of work coil takes place into a resonant tank circuit. There are innumerable advantages of this. The first advantage is that any one of the parameters, i.e. voltage or current is made sinusoidal. This causes fewer losses to inverter by the way of allowing it getting benefited from either zero-current-switching or zero-voltage-switching corresponding to the arrangement chosen. The visibility of sinusoidal waveform at work coil gives the proof of purity of signal. There also occurs less interference of radio frequency with the equipment in its vicinity. The various themes that are available can be choosen by the designers themselves.

DIY Bronze Furnace: The making of DIY Bronze Furnace involves taking silica bricks of 9 inches X 4 ½ inches X 2 ½ inches in the first place. After that, one is supposed to put a steel plate having dimensions 18 inches X 24 inches at the place where he intends building the furnace. In other words, the steel plate should be used as a base. The construction of furnace should start thereafter. It is advisable to keep the circumference of the furnace as 14 inches. A small hole of diameter 3 inches should be made at a height of 5.5 inches above the floor. Let the height of the cylindrical furnace be 11 ½ inches (including floor). This hole is to be used for inserting the burner.

The cutting of the burner port should be done in such a way that it acts as a perfect tangent to furnace. This should be done in order to make the flames whirl around crucible, thereby hitting it indirectly. While bronze casting you really have to be careful because there is a release of toxic fumes. Therefore, it is always advised to perform the casting task in the area which has ample ventilation. The process of casting really means that you should wear safety clothing and classes. After the completion of furnace (including the cutting of hole to get the fitting of one’s biggest crucible enabled), it should be permitted to dry. At that time, trawling of water, vermiculite, and kaolin clay on the exterior is recommended. The immediate use should be strictly avoided, as it may develop cracks. After drying, let the furnace be heated slowly to reduce ‘kaolin paste’ cracking.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Multitasking 80gb IPod

2008-09-21T11:54:00.007-07:00

Small, cool and hip the 80gb iPod takes multi-media entertainment to a new level. It is able to carry a library of up to 20,000 songs and 100 hours of video. This 80gb iPod can support up to 25,000 photos as well. This little machine has a lot of power. Apple continues the company’s stylish advancements with each new generation of players. Surely the 80gb iPod is no exception to Apple innovation. The company’s goal seems to be to bring the latest technology into the most convenient formats for personal use. With this pocket sized genie you can watch a movie or your favorite TV show or tune into some of the new and original programming on pod casts. There or more iPod games coming out along with downloadable songs from iTunes. You can choose the entertainment for the day whether you wish to listen to your favorite band or scan through your vacation photo’s to music. The 80gb iPod has something to suit your mood.

As usual the click wheel puts all the handy options at your fingertips. This time you can get up to 20 hours of music time on your battery and about 6.5 hours for video use. Check out the video functions for you can tune into full feature movies in the palm of your hand on the 80gb iPod.
You can play games, text, use the calendar and display contact information. It supports seamless play back that lets you easily go from one song to another on an album.

Dress It Up

One of the cool features of the Apple products it that there are loads of companies who just specialize in making unique accessories for their items. Your 80gb iPod can get a fancy case from the likes of ezGear or Otterbox. It is important for some to make their mobile entertainment center a fashion statement. If you think your 80gb iPod is really chilly you can put it in one of the new brightly colored sock covers made just for it.

More Accessories

Depending on your needs you can get a car kit for your 80gb iPod or a camera connector to download your pictures right from the internet. You may want to use it in class and an added voice recorder will help your with all those notes. With the iPod Hi-Fi you can dock you player and use it as a sound system for your room. One thing is for sure life is going to be a lot more interesting with the power of the 80gb iPod in your pocket. It’s easy. Try one on for size.

Innovative Sony Vaio Notebook Computer

2008-09-21T11:54:00.005-07:00

The Latest Data On The Sony Vaio Notebook Computer

From almost the very beginning of notebook computer history the Sony company has done everything it can to stay out in front of the competition and it has been able to do that with the Sony Vaio notebook computer. When it first came out years ago the Sony Vaio notebook computer was considered to be the premier multimedia notebook computer on the market.

Even with top of the line technology the Sony Vaio notebook computer remains easy to use and yet still powerful. One is able to perform intricate tasks as easily as they can read their e-mail.

Today the Sony Vaio notebook computer is considered to be a top of the line notebook computer thanks to years of experience and engineering. With all of the features the Sony Vaio notebook computer has to offer it is no wonder that it remains one of the top selling notebook computer brands in the entire world.

The Sony Vaio notebook computer has always prided itself on its features and its ability to stay up with whatever state of the art components are being offered for notebook computers. One of the things that Sony was the first company to integrate into their Sony Vaio notebook computer was wireless networking without adding an extra card or using a separate interface device. Now the wireless networking connection is standard as the rest of the field tries to keep up with Sony.

Sony's stays on top with its new line of notebook computers that include the latest in security technology. They were also first in the industry to build into their notebook computers CD-ROM drives. This allows the user more flexibility in adding and storing information or programs.

Customize Your notebook computer With Color

Continuing to be the innovator, Sony was the first to offer their notebook computers in a variety of color options. They also offered to emblazon your company's logo on the top. Pink, green, blue, turquoise, you name it and it will be done. Computers are not just for geeks anymore.

It is just another way that Sony makes the customer feel like they are just as much a part of the design process of their own notebook computer as the company building it is and it is something that customers have readily responded to.

Sony has also been developing external security features that include a tougher outer skin on the Sony Vaio notebook computer. notebook computers used to be extremely sensitive machines and while they still are very sensitive Sony has taken some of the incidental bumps out of the notebook computer by encasing some of their notebook computers in hard carbon fiber casing.

Sony continually updates thier products with the latest technology. If you want to get one of the best out there buy Sony.

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Going Through The Portable Mp3 Player Comparison

2008-09-21T11:54:00.003-07:00

portable mp3 player comparison
Word Count: 421
Keyword Density: 1.91%

When you are finally to the point that you are highly active in the market for looking for a good and decent mp3 player, there are a lot of things that you are going to want to look into. It is important to make sure that you are spending your money on something worth while so that you are not just basically throwing your money out of the window on a piece of junk. Whether you are looking at the waterproof mp3 player or just your regular run of the mill mp3 player, you will want to go over the portable mp3 player comparison so that you can have as much information as possible.

The portable mp3 player comparison is the best way to get a good idea of what all is out there so that you are not making a bad purchasing decision. Take advantage of all of the information that the portable mp3 player comparison has to offer you. By looking through it and reading over everything you will be able to make the best decision possible and maybe even save yourself a good bit of money. By purchasing only what you really need you save yourself not only time and money but also a lot of frustration, which is not something that anybody wants.

Finding The Comparisons To Look Over

When you begin your search for a portable mp3 player comparison it is important to know exactly where you should be looking so that you are not wasting any time. The best place to find a portable mp3 player comparison is on the Internet as the web is packed full of valuable information on electronics such as the mp3 player. By doing a quick search you are bound to find several sites that can offer you a portable mp3 player comparison to look over and learn from.

Other then the Internet, the only other place you may find a portable mp3 player comparison is going to be in different electronic magazines and catalogs. These are also some great places to find some excellent information to help you with all of your purchasing needs and questions. There is no doubting that there is a lot to learn when it comes to the mp3 players but with enough research you will be able to have a lot of knowledge in the subject matter. In the end you will finally have the right mp3 player for you that suits your personal needs and interests.

Abundance Of Options To Choose From For the Best Plasma TV Mount

2008-09-21T11:54:00.001-07:00

Selecting the most recent plasma TV is surely something that will provide most people with a big rush that would be even more pronounced if you get the best plasma TV mount which will give you the ability to have your top of the line plasma TV displayed in the best area in your house.

You will certainly be presented with an array of selections in this type of situation and one of the primary deciding factors would certainly be your own personal preferences that will point you in the direction towards one specific type of plasma TV mount.

Articulating Wall Mount - A New Way of Positioning Your TV

There is a diverging array of selections for wall mounts. Amongst these different options that you will need to take into account prior to purchasing your plasma TV mount is what is called an articulating wall mount that is likely the best option out there at the moment. With it you even have the option of lowering your TV and you can also move it in most any direction which includes up and down as well as from side to side.

There are also many types of alternatives with the type of plasma TV mount that you get to select from and it also is very well suited for a persons bedroom in addition to a game room because it gives you the ability to view your prized TV from and area in your room.

An additional option when it comes to plasma TV mounts is to pick a regular flat mount that does just mount your plasma TV to the wall in a very similar way as you would simply hang a picture on the wall and for most people this plasma TV mount is the best selection, particularly in the living room or the den. It is a particularly a good pick when you do not wish to move your plasma TV, although one small drawback is that you might not be able to view it from all the areas of the room that it is mounted in.

An additional selection in regards to plasma TV mounts is to purchase a tilting mount that it perfectly suited for any plasma TV which is situated closer to the ceiling of the room and it permits you to look upwards at the TV and also provides you the ability to tilt the screen in a downward direction to help improve the viewing angle of the screen.

One of the only challenges with this kind of plasma TV mount is that it isn't likely that you will be able to tilt it in a side to side motion ad therefore simply tilting up and down will have to suffice. This could end up hindering your viewing angle if you happen to be sitting off to one side.

Lastly, you might select the swivel mount where you have the ability to move your plasma TV in a side to side arc therefore giving you the ability to view it from various angles In this situation it is an ideal match when you move around the room a lot.

The bottom line is that you need to select a plasma TV mount that best handles your own personal needs. Also know up front what room you are going to place it into so you will be better able to choose based on that as well.

To learn more go to Plasma Television advice and at Lowest Price Plasma TV tips.

Here is an overview look at the CAD design process

2008-09-20T11:13:00.007-07:00

CAD Basics

When designing something complex in CAD Software you will find there is a bit of a process. First you design parts. Then you build the parts into Sub-Assemblies. Next you build sub-assemblies into Groups. Then you build the groups into the machine. It is a logical pyramid process. You can also think of it like a file structure inside of a computer.

Designing Parts
Parts are your basic building blocks. Without this level, nothing could be produced. The part level breaks the entire “thing” down to its simplest form. You also manufacture at the part level. You make parts, and then assemble them into other things. Parts are generally made out of raw materials.
Think of a differential on the rear axel of a car. The differential is made up of gears and a housing. Each of these are parts of the differential and the differential is the assembly of these parts.

Designing Sub Assemblies
Sub Assemblies are the next level up and I am guessing you are getting the idea. You first design parts, then put them together into sub assemblies. In the car example above the differential is a sub assembly in the axel “Group” of the car. Sub Assemblies are put together to form groups.

Designing Groups
Moving up the design chain, groups are usually things you can identify with. It could be a door, engine, transmission, or cooling package on a car. Above we used the example of an Axle as a Group. Groups are put together into machines. Our example is a car, which is at the machine level.

Designing the mechanism
Finally, the top level of all your designing, the machine. The machine could be built for the end user or be sold to another manufacturer. That manufacturer could use your “machine” as a sub assembly or group. You can see all this is just a matter of viewpoint. You can consider just about anything a sub assembly, group or final machine. It is all just semantics and what you are using the item for.

CAD software prices
I consider there to be a few different price points in the CAD Design Market.These can be viewed as hobby or professional price ranges. This is usually a good break as well in the features a program offers. Here is a quick run down.

Hobby computer aided design software
Could possibly be free
$0-$500 price point
Could be 2D, 2.5D or 3D capable, usually 2D or 2.Five dimensional
Stand alone licenses
Meant for an easy user interface
Probably missing some advanced tools

Professional computer aided design software
$500-$10,000 price point
2D, 2.5D and 3D capable
Network version that let multiple designers interact
Different modules or plug-ins like FMEA
Full featured, most every type of tool is available

Examples of Commercial CAD Software Programs
AutoCAD
Turbo CAD
IntelliCAD
Pro/Engineer
CAD Pro
Alibris
Solidworks
QuickCAD
Rhino3D

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How can I use computer aided design

2008-09-20T11:13:00.005-07:00

CAD Design

CAD stands for Computer Aided Design or Computer Aided Drafting. CAD was developed in the early 60s. Today it is the premier way to design, develop and optimized products.People use computer aided design daily to design darn near every product that you see when you look around. Generally, designers use CAD to design a product, and then produce prints to manufacture that product. A print is a picture of a part or assembly that is very exact. It includes the dimensions and a parts list used to manufacture a product.

CAD Design is the use of computer based software packages that assist engineers, architects and other design professionals in their designs. Computer-aided design is the part of the Main design process and involves both software and at times hardware. Current software packages range from 2D vector based drafting systems to 3D solid and surface modelers.
Computer Aided Drafting software packages can generally be broken into two groups. The groups are 2-D drafting packages or 3-D drafting packages. Most all software packages are moving to 3-D design. 3-D design is really the next generation of CAD. Utilizing 3-D design, engineers can make a model of their product.They can review this model for any defects before it is ever manufactured.

CAD is used to develop products.Computer aided design is mainly used for engineering of models and drawing parts. It is also used throughout the engineering process from concept to design of products. These products can be used by end consumers or used in other products. For example, you can design a bolt in CAD, and then use it in a Sub-Assembly in a planetary, which is a part of an earth-moving machine. CAD is also used in the design of tools and machinery. Finally, it is used in the design of all types of buildings from sheds to shopping malls.

Print Reading and Drafting
When I went through college I learned how to read prints and draft. We had a bag of physical tools that we purchased and hauled around campus. T-Squares, French Curves, compasses, pencils and erasers filled this bag. Then you had a pad of drafting paper and a drafting desk. You would pin or tape the paper down and begin drawing or drafting.
Drafting paper has a grid to help keep you aligned as you began you design. In CAD, there is a grid you snap to, or guides to keep you straight. We had hard plastic templates to draw curves.Computer aided design software as many tools to draw both curves and lines. We had calculators to figure out distances and ratios. CAD does this automatically.

Computer aided design replace drafting.CAD moved the same process into a flexible environment. CAD has also helped out with networking of designs. Different designers and engineers can work on the same assembly in different parts at the same time.This effort moves the process along much quicker.

However, as far as print reading goes, that is about the same as it was before. Drafting outputs prints and CAD outputs prints. A human still needs to be able to read them and make sense of them.An advantage of computer-aided design is that it is much more standardized. Many times before, prints were unique to their maker. Similar to handwriting, you could not always figure out what the engineer wanted to convey to you. CAD cleans all that up.

How do I translate my design into the computer?
This is how I view CAD. You learn a CAD software interface and begin the translation of your idea into the computer. This usually takes some time and thinking. Many times your idea and design will be revised as you discover things you have missed.While you are programming your design, your idea begins to take shape inside of the computer. Now you can share it with others.

Different Design Views
In Drafting and CAD there are different views. These are viewpoints of your part or project from different sides. We need these different viewpoints to be able to describe our project accurately. Think of it like seeing an elephant from the front. You have no idea what the side or rear end of an elephant looks like. To be able to accurately convey the elephant to another person you need multiple views.

The main print or design views are:
Front View
Top View
Right Side View
Isometric View

CNC Information Free Community Site:
If you would like to know more about CNC, head on over to http://www.cncinformation.com
You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

Fun Computer Software for Children

2008-09-20T11:13:00.003-07:00

Children's Computer Software is a great way to let your kids have safe, fun, and educational experiences while learning how to be computer savvy. It is undeniable that the computer has become a large aspect of life and communication. Although computer literacy is learned in school, many parents acknowledge the importance of gaining computer literacy early, at home.

Moreover, parents are often, rightfully protective and concerned with how to do this in a safe way for their children. They feel better knowing they can be there, and have an active hand in the introduction to the world of computer literacy. Children's computer software and especially educational games can be the best way to do this.

Children learn at different speeds and have different interests. Computer software is also available to satisfy their various needs for learning, fun and skill levels. With the many computer software designers out there how do you know which one is best?

The first thing to be considered when looking into children's computer software for your child is, of course, how old they are, and what you want to accomplish with the software you get them. There are so many options, from learning and development, to games, to both! You can get software that helps with schoolwork, that helps reading and writing skills, math, and the possibilities are endless.

So be sure to think about what you and your children want from the software you choose, as well as taking into account the age range that fits your child. Another thing to think about is what kind of software suits particular tastes. If choosing a game, educational or just fun, do your children like adventures, fantasy, sports, mystery, or something altogether different?

Include your child in the decision making process. You can steer and guide them in the right direction but they will enjoy it a lot more if they feel they picked the game out themselves.

Computer time can be a great time for the family to interact together. Eveyone can get involved in the game. Your children will learn computer skills as well as how to communicate and cooperate and compete and even lose all within the safety of the home.

By doing some online research you can find sites that will inform you about good and bad aspects of the software you are interested in as well as what age and skill level it is geared towards. You want software that reinforces good choices and positive learning skills.

The search for the perfect game or program can be part of the fun of buying children's computer software. It will make you feel better to know you have chosen something that is trusted, safe, and has been well researched, by you! Once you know you have done the best job possible choosing the best software for your child, just sit back and watch them go. They will not only be learning skills, but they will be having fun. Moreover, those two things go great together.

Get more information about software and computers visit Cheapest Laptop

How To Easily Convert Word Doc Files To Text, Fast And Cheap

2008-09-20T11:13:00.001-07:00

OK, so converting Doc files into text probably isn't something you'll need to do daily. (If it is, maybe you need to get out more!)

Chances are that it's a sudden need - maybe caused by your boss or your boss's boss. Suddenly, you're given a pile of Word format "doc" files that need changing into plain old text files (the ones with the .txt file extension. Likely because someone needs the information contained in the files but doesn't need all the proprietory formatting and other junk that Word adds to make things look pretty on screen.

What's more, they're needed very urgently. Like now. This instant.

If there are only two or three files to convert then the easiest way is to use Word's "Save as" function. That works OK although Word will warn you every single time that you're about to lose all the formatting. Yeah, whatever, you knew that already and sure don't need to be told it every single time you want to save a file as text.

But what happens if you've got tens or hundreds or even thousands of doc files to convert?

Word's macro system might do the trick. Or, if you're a normal human being, you could spend the next hour fruitlessly trying to get the macro to do what you thought you'd asked it to.

Far and away the simplest way to convert a folder or CD full of Doc files is to use a program like Doc2Text. So long as you can use Windows' drag and drop functionality, you can quickly and easily convert files all day long. Really, really fast - around 150 files a minute.

Sure, there are other programs out there that do the same thing but they're more expensive (by an order of magnitude). You can check out Doc2Text for free here.

A 42" Plasma Will Catch Peoples Eye

2008-09-20T11:12:00.005-07:00

It is a stereotype that all men feel that they must have the biggest television possible in order to be happy. Okay, so maybe there is a tiny bit of truth to it, but nowadays you have to also include women. Gender does not define happiness with the size of your television. If size is an issue for you and you feel that your television is just not measuring up to your friend's new big screen TV, then get back into the competition and purchase a 42" plasma or LCD TV.

LCD and plasma flat screen televisions are the new "thing" in television viewing technology. They come in a variety of sizes ranging from a 42 inch plasma television and on upwards to around 50 plasma. The size you need is really based on the size you want. Your friend may have a new big screen TV, but that does not mean he or she has the best picture. Big screen televisions often have pictures that are distorted and faded. To top that off, the big screen TV's are also incredibly bulky, heavy and take up a huge amount of living area.

With a LCD or plasma television, you will not face the space issue. Most models are now designed to be able to hang from a wall. It does take a special mounting kit, mounting brackets on the wall and a knowledge of where your support studs are located in the walls, but it will save a huge amount of space. If you are going to mount your flat screen television on a wall, then please make sure you do it properly. It would be a real tragedy to have it fall to the ground and break due to faulty installation.

Once you have purchased your brand new 42" plasma or LCD television, you will need to utilize the purchase by having a higher satellite or cable service. You want to showcase your new purchase with HDTV to help add crispness and clarity to your viewing. You also may want to consider adding a stereo or home theater service to provide you with a great listening experience.

It is okay to fall into the stereotype in some categories. A 42" plasma TV is a great size that can impress any family or friend. Hang it on the wall like a piece of living art. Invite friends over for a get together and watch a great movie or the game. There are many ways to showcase the large flat screen and justify the cost of the television set. You will be glad you took the plunge and got into the LCD and plasma rage.

That big television you have in your living room was once the most popular television type for its time. Well...times have changed and its high time you changed with them. A plasma TV is the way to go now for great picture quality and sound. The price may be a little steep but you can still find great deals on plasma television for under five hundred dollars. That is how much you probably paid for that big black box you currently call a TV. Get on the band wagon and get yourself a great television by clicking here: Lg Electronics Plasma Flat Tv and at What Is Plasma Tv

Flat Screen TV - Why This Type Of Item Is Used By Many As A Gift

2008-09-20T11:12:00.003-07:00

A flat screen TV has many great factors that give it a supreme edge over the bulkier Cathode-ray televisions of the past. Besides a sharper image and better sound quality, there is also the fact that they are very slim and in some cases much lighter. If you compare prices from today's plasma and LCD televisions, then you will find that the prices are very affordable considering the technology you are receiving.

You have probably noticed that flat screen monitors have been around for quite some time. The laptop would not have been a viable and streamlined monitor had it not been flat. Flat screen monitor's first run of production were still quite heavy, but instead of a rounded screen, a flat screen was inserted. From that point on it was the primary goald of both engineers as well as designers to have a monitor that would weigh much less and not be as bulky.

You can thank your flat screen TV to the scientists at the University of Illinois. They were the ones to discover plasma technology. They were searching for a unique flat screen monitor which had a superior type of picture quality. Monitors in that time were just television sets used with the main computer. The picture was not very good. This technology was developed in 1964. Just think about the huge innovations that have occurred since that time.

Television has come so far from its humble beginnings. It was a novelty to possess something that could transmit a program from the other side of the country. Sure the image was grainy and in black and white, but it was still an item that only the wealthy possessed. Eventually it became more affordable. The television evolved into color and bigger screen sizes. Then it became much larger; as tall as the average woman. It's sad that the image had lost quite a bit of it's vibrant color and also become distorted. LCD and plasma solved those dilemmas by changing from a cathode-ray to the use of plasma.

People everywhere are jumping into the flat screen TV craze. Even the price does not seem to be intimidating to most buyers when they compare the differences between their older models and the new fantastic versions. As more manufacturers discover new technology, the prices will fall. You can buy a 30 inch flat screen plasma or LCD for roughly $800 and when there are sales, they can go down to as low as $600.

To learn more go to Flat Screen Plasma Tv and at Plasma Tv Technology

Using Two Monitors on One Computer Is More Productive

2008-09-20T11:12:00.001-07:00

Using Two Monitors on One Computer

You might ask why someone would use two monitors on one computer but there is an explanation. Known as dual pc monitors, these have a multitude. A great reason for using dual monitors is for anyone in the photography business. For example, photographers working on digital photos, trying to view, study, and arrange, using a second monitor is a great help.

With a dual computer screen, you can indeed double work and also desktop space. One of the most common pc screens is the LCD. These are aesthetically pleasing and they are very space efficient. Therefore, one who does not have a lot desk area would benefit from the LCD monitor. Now, for people on a budget, a CRT monitor is also a good choice but bigger.

When it comes to using a dual pc screen, again the greatest advantage is for someone in photography or a person who works with graphics and digital images. Some of the main benefits include:

Looking through a photo library, putting all pictures on one monitor in thumbnail view and then looking at the pictures on a full screen on the second monitor whereby the picture could be focused and manipulated.

Editing images is also easier by using dual computer monitors. For instance, one monitor can be used for browsing images on the internet or through some type of photo gallery and then with the second monitor, photos can be edited using a special software application program.

Even staying current with email is an advantage of having two monitors on one pc. For home businesses or individuals in corporate America, receiving tons of emails is common. With two screens, one could display all new emails coming in while the other could be be used for other types of work.

The bottom line is that dual computer monitors have many of purposes for home users or people in the marketplace. While the pc speed would not advance, productiveness would because the person is better equipped to stay better organized and multi task in a manner like never before. This direction has become so preferred that it is becoming a normal part of purchasing a pc and monitor.

Today, there are a number of pcs on the market that are designed to support a dual pc screen without having to spend additional cash or time in getting hardware set up. Consequently, if you have a newer computer, you might already have the ability to work on two monitors on one computer. To check, look at the back portion of the pc where you would see two VGA connectors or DVI connectors, or in some instances, both.

If your computer is not designed with a port for working on dual computer monitors, then you can visit a local computer or electronics store and buy the required hardware. For this, often times the hardware can be installed by yourself but often times a professional’s help is needed.

Get more information on computers and laptops visit Cheapest Laptop

CNC Design

2008-09-19T10:02:00.001-07:00

CNC

Right now we are going to discuss the initial element of computer numerical control. That element is CNC Designing . Before you begin a CNC project, you need to have a plan of action. The design is like a blueprint, you know what you are going to build before you ever build it.

Here are some important elements of design that need to be answered:
What size will it be?
What material will the piece be constructed of?
Who is the customer?
What will it be used for?

Your design can be anything. It could be an industrial part or a work of art. This is only really limited by your imagination. Many people use CNC every day to manufacture parts. Many hobbyists use CNC every day to create art and various home projects.

Before I design I like to sketch a few ideas out on paper. I like to toy with different ideas to spark my creativity. This is the equivalent of brainstorming. When I really get my juices flowing, that is when my best designs rise to the top. I generally carry around a notebook with me to note designs that I think of during the day.
After I have a few likely suspects, I try to look through each of the ideas to see if I can merge them somehow. Some designs have different parts or components to them.Some components are better than other components. Can I take some of these parts and add them to another design to make it better? Just like writing, editing your designs is a critical step in the process.

When you are designing, you are really trying to describe what you are going to build. The more accurately you can do that, the better the whole process will go. Just like a house, if you have a strong foundation, you will have a good house. If you have a solid design, the rest of the process is easy.

CAD
Computer aided design stands for Computer Aided Design or Drafting.Computer aided design was developed in the early 60s. Today it is the premier way to design, develop and optimized products. People use CAD every day to design virtually every product you see. Generally, designers use CAD to design a product, and then produce prints to manufacture that product. A print is a picture of a part or assembly that is very exact. It includes the dimensions and a parts list used to manufacture a product.

Computer Aided Design software packages can generally be broken into two groups. The groups are 2-D drafting packages or 3-D drafting packages. Most all software packages are moving to 3-D design.Three dimensional design is the next generation of CAD. Utilizing 3-D design, engineers can make a model of their product. They can then look over this model for any apparent defects before it is ever made.

3-D Design
Utilizing 3-D design, engineers can cut down on the number of manufacturing mistakes that occur due to fit up and tolerance issues. This translates into a more efficient operation with less waste for the manufacturer.

Here are some examples of 3-D drafting/design software:
Inventor
TopSolid
SolidWorks
Alibre Design
Rhino3D

2-D Design
2-D design can be very efficient if you need to make a quick part that is not very complex. You could quickly sketch out a silhouette of an object and convert it into a CAM tool path. This is an operation where 2-D will really shine.

Here are some examples of 2-D drafting/design software:
AutoCAD
MicroStation

At some point you will need to use CAD. You will need to take your design and translated it into a print. The best way to do that is to use CAD. You will need to purchase a Computer aided design program of some sort if you are serious about CNC. Many Computer aided design programs have a free or trial period that you can use to evaluate the program. My suggestion is to try a few and then select one that fits the way you design.

CNC info community site:
do you want to know more about computer numerical control, head on over to http://www.cncinformation.com
You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

Designing for the CNC process

2008-09-19T10:01:00.011-07:00

CNC Design

Introduction to Design
Designing is arguably the most important step to the CAD Process.Why is that you might ask? Because it is at the beginning. This is the planning stage of the process. If you come up with a bad design, all of your work after this point is lost. I also think of designing as the planning process. You need an inventory of what you have to work with before you begin.

Every thing needs some planning to start with.Whether it is buying a home or a family vacation. CNCis no different. You need to think about what you want to accomplish before you ever invest any time or money. Now I am not saying you need to have a perfect plan. What I am saying is that you need to at least have a plan. Believe me I have had many plans and virtually none of them ended up perfect. What it did do was give me a guide to follow. A roadmap of sorts.

You also need to know your limitations. For example, don’t go designing a metal sign if you have a CNC Wood Router and nothing else. Or, you want to make a 2” thick wood routed sign, but your CNC Wood Router only has 1” clearance. You will need to know you own personal capabilities and your shop’s capabilities. Once you know that, you can improve your situation either through training or purchasing other tools.

Where do good design ideas come from?
First, look around. Take an interest in your environment and all the various objects around you. Look at how things are built. Generally, I don’t look at the overall design. I try to figure out how they build a specific part or area of the design. For example a unique latching mechanism.

A lot of good design is experience. Experience comes from failure as many people have said. The bottom line is you need to try stuff and experiment with ideas. Pick the ones that are useful and go with them. Leave the failures on the scrap pile and move on. Never marry yourself to an idea as being perfect.Pretty much everything can be improved in some way.

Know what you want before you build it
When designing it is very important that you know what you want to build. You don’t need to know every detail, but it helps if you have a general idea. For example, the item may need to fit inside a certain dimension. This dimension could be the size of the box used for shipping the item to the customer. This is a requirement of your design. Requirements can either be self-imposed or put upon you by someone else.

Another example may be building a piece of art. You may want to make the piece out of Stainless Steel because it would reflect the sun and hold up in the environment. Then you find out Stainless Steel is too expensive and that you don’t have the equipment to work with it.Stainless steel usually maxes out your equipment.

You need to have a plan, at least a rough one.You will need to look at your skills and match your designs to them. You will also need to get all requirements for the project before you ever begin. If you do that, you will not waste extra time redesigning again and again.

What are the limits?
Really, you are the limit.Your brain and its thinking ability are the limit. If you can think of it, someone, somewhere can probably build it. The more you expose your brain to different things and ideas, the more connections it will draw.his is where your creativity will generally come from. You need to feed your brain interesting information and it will spit back some interesting designs.

Part vs. Art
In designing for computer numerical control, there are really two different paths to follow. Art or Part. By art, I mean a design that may have extra embellishments, curves, features, text, etc. By part, I mean a square with a hole in it. Or a triangular gusset.Art is generally a little more flowing or of an image of something. It could also be a sculpture for example.

When you are designing art, you normally keep a sketchbook with your ideas. You note them. They don’t have to be perfect, just roughed out. Sometimes I cut things out I find interesting and put them in my sketch book. Things like interesting shapes, interesting images or even a unique way to bolt things together.

When you are designing parts, you are dealing with deadlines and customer requirements. There are no extra things to personalize or stylize the part. The part is utilitarian and gets the job done.This is mainly what computer numerical control is used for. This is what various industries use CNC for.

Designing on Paper
Most people scratch out their initial ideas on paper to rough them out. I like to draw things out in a print, drafting or blueprint format. This style uses multiple looks and multiple angled drawings to convey what you mean to someone else. I picked up this style of drawing while working in a manufacturing environment. Some wood workers will also recognize this style. Think of a time when you bought “The Plans” to building a birdhouse.

Designing with a Computer
This is what I use next. Once I have something roughed out, I like to translate it into a computer. Things are more exact. You get a feel of the size or how parts fit together. You also get the benefit of saving your work and coming back to it later. You can even share your files with others when working on a project.

My Design Computer Setup
A few people have asked me about my design setup at home. Here is what I like to use. First a powerful computer with plenty of processing power.Be sure to get a lot of processing power, random access memory and a big hard drive.Don't skimp out here.CNC software will use a lot of system resources and you will save plenty of time by having a computer that can handle that extra load.

Next, buy a dual monitor setup. You will need a graphics card with a dual output head and two monitors to output to.Most users can install this by themselves. Dual monitors keep you focused. I really like being able to keep my computer screen clean of various design palates that seem to clutter it up. A dual monitor is perfect for this.

CNC Information Free Community Site:

If you would like to know more about CNC, head on over to http://www.cncinformation.com You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

Learn More Abotu the Number One Virus threat

2008-09-19T10:01:00.009-07:00

Out of all the viruses and spyware on the market one takes the cake. It’s Called Virtumonde. This threat is not only hard to remove but can wreak havoc on your computer. Check out this Virtumonde site for detailed removal information on this threat.

What does Virtumonde do?

The main purpose of Virtumonde is to show pop-ups and to re-direct your browser. Let’s say you open your browser. For a second or two it will start to load your home page the re-direct to another site. If you were to Google and do a search, then click on one of the search results you can also find your self re-directed.

What to do when infected

You have many options if you are already infected. One of the simplest one’s is to have an expert repair this for you. I know your thinking it will cost too much but we stumbled across this computer repair site that does a great job at fully removing all threats. The cost is 89 bucks but when you think about it that is a fraction of what it costs to call someone over to the house or even take you computer to a shop. The repair is done right online via remote screen sharing software.

Software to Remove Virtumonde

There is software out there that can remove Virtumonde as well. Check out the list we found at Virtumonde removal software. This gives you an idea of what will work to remove Virtumonde yourself.

If you want to remove this virus for free then it will take time. The first mentioned site has free guides you can follow to help remove this threat. Your trade off is time. After battling this ourselves for a few hours we just ended up having the online computer repair site remove this for us. It was well worth the cost and all in all I am glad we went this route.

Crucible Tongs Info

2008-09-19T10:01:00.007-07:00

Crucibles

From the earliest attempts to make lead into gold and to the more modern use of making those empty soda cans into a replacement part for that model plane, crucibles have been an absolute necessity in Metal Casting .

Crucibles are placed inside of the furnace where the metal is placed and then melted. The crucible then collects the melted alloy which will then be poured into the model. Since the crucible will be holding metals melted at extremely high temperatures the crucible will need to be created from very strong material. The durability of the crucible will add a certain aspect of safety to the Metal Casting process. Using a crucible that is low in quality can result in shattering, which, let's face it, is never ever a good thing.

Any crucible at any given moment can shatter or fail which is why using appropriate safety gear at all times is so important. In order to handle the crucible which will be red hot you will need to wear boots, jeans, and gloves.The tools that you will use to help you lift the crucible and then pour the molten metal from the crucible are different depending on the style of crucible. Those that make their own crucible will be able to create them in an identical manner so the same tools can be used. Your tools are really what is going to help you lift and pour the crucible so its important to make sure these are safe and correctly installed. It maybe goes without saying, but even with hand protection, you don't want to even touch a hot crucible.

For those that either can not or will not make a home made crucible can buy a crucible and tools from any of the online stores. A common material for crucibles is graphite as it can withstand the molten metal. Many who cast metal will prefer using graphite crucibles as it can prevent impurities from being introduced into the gold or other precious metal being used. Another option is the Silicon Carbide crucible.

Silicon Carbide is a great though expensive alternative to the graphite crucible. A crucible made from Silicon Carbide can handle rougher treatment then graphite so if you are not particularly gentle with your toys then this is a terrific option.

Yet another option available to the home foundry is creating your very own crucible. Many don't really recommend this since commercially created crucible tend to be more durable and will instill a bit more confidence in the casters. It is, however, possible to create a crucible as many of us will at one time or another.

If you plan on creating your own crucible then keep this in mind. There are a few areas of Metal Casting where you should not cut corners, these definitely include crucibles. The crucibles job is the transportation of incredibly hot molten metal which can easily exceed 1,000 degrees Fahrenheit and is really the only thing between you and this metal. When you plan on melting metals with extremely high melting points you will need crucibles made from material that will cost a little extra. Spend that money and do so gladly since it is just a small price to pay for your safety.

Crucibles should only be used to melt one kind of metal. If you have always melted aluminum but decide to try melting brass then you will need a new crucible. This is done for safety reasons. Remember, a crucible is not meant to last forever. Always check your crucible before use to make sure there are not cracks or imperfections if there are then do not use that crucible.

Crucibles come in a variety of sizes and can be made from a variety of materials. It all depends on the type of metal to be used and the size of the job. Never skimp on the price of this tool and always follow safety guidelines and use common sense when dealing with a hot crucible.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com right now to get your Free Ebook that is all about Metal Casting and Metal Casting Basics for Free.

Soldering Torch Information for Casting Torches

2008-09-19T10:01:00.005-07:00

Furnace Torch

Metal Casting provides the hobbyist with a great way to create personalized parts and pieces that may otherwise be unattainable or far too expensive. Casting is an ancient art that is still is use to this day by major industries to artists to those with backyard foundries. This skill is a valuable one that promises to provide the hobbyist with a rewarding past time. Most hobbyists begin their casting careers with a modest sized furnace to fit their most basic needs. Within a few months, the hobbyist might find that the furnace has grown and that they are casting at every chance that comes along. Don't worry, this is completely natural.

To say that Metal Casting is addictive is an understatement. Metal casting provides a way for an idea to materialize through molten metal. This is perhaps one of the greatest parts of the entire metal casting process like seeing what was once just sketches solidify from liquid iron, or whatever metal is used. Simply put, all that the caster needs is a creative idea combined with red hot melted metal to great his design.

The furnace is the pride and joy for the metal caster. Most will construct their own furnace tweaking the design here and there to better suit their needs. Many home Metal Casting foundries are based on home made furnaces and if constructed correctly can prove to be highly effective. The crucial part of the furnace is the furnace torch. The torch brings the heat, incredibly high heat, and without it that chunk of metal would just sit in the crucible and never see life as something new and exciting. Except as a paper weight; a very ugly paper weight.

When searching for an appropriate casting torch the hobbyist will need to take several things into consideration. The size of the furnace, and what metals you plan to use are chief among the considerations. Many casters will use a torch that uses propane gas as it provides enough pressure and heat to melt most metals. If the hobbyist plans to use natural gas like the kind that is provide in households they may find that the pressure is just not enough and the desired temperatures will not be reached. The same is true for Butane. While natural gas and Butane can be used, propane seems to yield the best results. Oxyacetylene torches are a favorite with many casters especially for casting iron.

Price is yet another consideration. While it may be possible to rig a casting furnace it is not always advisable. Torches can range in price from $40 to several hundreds of dollars depending upon the size, the use, and accessories.

Many jewelers are able to use small independent casting torches but when dealing with metal casting in furnaces you will need to use a torch that can be mounted and used in such a fashion. Many think that just because you need a furnace torch you are going to need a large furnace. This is simply not true. A small furnace and furnace torch can produce enough heat to melt aluminum, iron, and a number of other metals. One of the furnaces functions is to help the flame reach optimum temperature and in the case of Reverberatory Furnaces, a furnace torch is an absolute requirement.

Casting torches can be found in some hobby shops and in hardware stores. Since everything has gone to the internet now days, you can see that there are plenty of places online that sell these torches. As with anything, you will benefit on price if you take the time to shop around to look for the best price. Always use caution when dealing with a furnace torch.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Visit the website today to sign up for free so you can then download your free book on Basic Metal Casting! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Silversmithing Tools, Foredom Tools, and Metal Casting Tools Information

2008-09-19T10:01:00.003-07:00

Metal Casting

DIY Casting takes a certain amount of skill and knowledge not to mention the appropriate tools of the trade. Luckily, anyone can learn metal casting and the tools are widely available and some can even be crafted right at the home workshop.

Most of the DIY Casting tools are pretty standard and can be used for the different casting processes. If you already familiar with metal work then the chances are pretty good that you already have some of the tools in your garage or workshop. In fact, it is possible to make many of the tools that are commonly found in small foundries. If you are unable to make your own tools then there are many online resources where you can buy tools and even home improvement stores will have the tools.

The absolute must have metal casting tools will be used for safety. Safety in the home foundry is a must since any accidents that can occur will more then likely result in devastating injuries, remember safety first.

Gloves will be necessary when pouring the molten metal or picking up the crucible with the aid of heavy strength tongs. Wearing clothing that covers your entire body including long sleeve shirts is important because there will be extreme heat coming from the melted metals. Jeans and work boots will help prevent any injuries in case of spills. Sometimes people aren't aware of this but if you spill metal on places that are wet or have been wet recently, then it will splatter and it can be dangerous. Even concrete can cause molten metal to splatter that is why metal casters always keep a muffin tin on hand where any excess molten metal can be safely stored. Always wear goggles when working with intense flames to avoid eye damage. Without the appropriate safety gear injuries are pretty much guaranteed.

The furnace is the most important tool of the trade when it comes to metal casting. This tool does not necessarily have to be large and can even be as small as a flower pot. Size does not matter and even the smallest of furnaces can melt your alloy. The individual tools used in the furnace can differ. Not all of them will use a crucible but all of them will use a fuel source and require a refractory of some sort to help shield the furnace and direct the heat.

Simply put, the crucible is the object where the metal goes when you want to start the melting process. It pools inside the crucible and with help of tongs which can be made in a workshop is transported to the mold to be poured. If your furnace does not have a crucible then you mush have a ladle so that you can transport the mold. As it states, the mold is that molds or shapes the metal into the shape or sculpture that is desired. The mold consists of two pieces a cope and drag. The cope is the top half of the mold and the drag the bottom. The sprue is where the molten metal enters the mold. After the metal solidifies the sprue is cut away from the cast.

Metal Casting involves many other tools some of which are used for all processes and some are not. The tools needed change from job to job. When you start out in metal casting make sure you gather all the needed tools before you begin. As you start new jobs or look at doing new projects then you can start o gather more tools in your inventory.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com Today for your free Ebook on Metal Casting.

Green Sand, Green Sand Filter, and Green Sand Molding Information

2008-09-19T10:01:00.001-07:00

Metal Casting

Sand Metal Casting is the most ancient form of metal casting and has been around since at least Ancient Egypt. Many metal casters prefer using sand casting over many of the other forms of processes because it’s cheap and the sand used is readily available.

Many experienced metal casters will continue to use sand casting even though their abilities and resources allow them to use the other metal casting methods like Lost Wax Casting or Investment Casting. Sand casting involves less material and less effort than the other casting methods. Sand casting is a great way for new casters to get into the trade.

In sand casting, the metal caster will create a mold by placing an original in the flask which is filled with sand. The original will be a pattern of what you want to cast. By ramming or vibrating the sand, the caster creates a mold of the original. The casting sand used needs to be able to retain the shape of the mold. Your water and sand mixture is one of the most important parts of making your mold. Too much water can ruin the mold and possibly destroy it while too little water will create a poor casting. One of the reasons that Green Sand is liked among casters is that its easier to retain the shape of your mold with Green Sand. If you take Bentonite Clay, Sand, and Water you will probably get some form of Green Sand.

After the sand is packed, the pattern or original is removed carefully. Molten metal is poured into the mold and allowed to cool. The metal caster will then break the mold and dig out the casting.

While sand Metal Casting has its benefits the use of green sand can greatly increase the likelihood of a successful casting. Green sand is not really green the color refers to the damp nature of the sand. Green sand is created by adding water and bentonite to the sand. One of the benefits of using bentonite in green sand is that it makes the sand more permeable which allows more gas to escape.

Metal casters can get the bentonite from a variety of sources like home improvement stores and even from household resources. Many have milled the type of cat litter that clumps since one of the ingredients is bentonite. Remember to work in a well ventilated room or to wear proper face gear when working with bentonite since it will irritate the lungs.

A lot of Casters will start with a Green Sand Recipie but then start to make their own tweaks with experimentation. What you are looking for when mixing the sand, water, and bentonite is a texture that is not wet but damp and will retain its shape when molded.

The type of sand you use to make green sand depends on you and the availability of the sand. Many will use sand that they found out in the wilds of nature and some will buy bags of sand like playground sand. As you cast with green sand you will find out which works best with what metals.

Green sand is growing in popularity as more casters are recognizing the properties of this method. If you have traditionally used regular sand casting, green sand casting will prove to be easier to work with and will produce better casts.

The best part about green sand Metal Casting is that is does not cost a lot of green.

Metal Casting ZOne is a new community website all about Home and DIY Metal Casting. Come by today and join the site for free and you get a free Metal Casting Basics EBook just for signing up! Come by MetalCastingZone.Com right now to get your Free Ebook that is all about Metal Casting and Metal Casting Basics for Free.

G-Code sample

2008-09-18T04:34:00.005-07:00

cnc programming

Next, we are going to go through an example of cutting out a 2” square with a CNC Plasma Cutter.Then we will view the G-Code to see what is going on.

2” Square G-Code:
The numbers on the left of the G-Code are the sequence numbers of the code and the order it will be executed in. I have added notes after different actions to let you know what that line of code means. My note starts with a “-“ then continues. A “-“ means nothing in gcode.

N0000 (Filename: 2INSquare.txt) – Name of File
N0010 (Post processor: Plasma.post) – Name of Post Processor Used
N0020 (Date: 8/1/2007) - Date G-Code was generated
N0030 G20 (Units: Inches) – Measurement Units Used
N0040 G53 - Machine co-ordinate system
N0050 G90 – Absolute Programming
N0060 G40 – Tool radius compensation off
N0070 F1 – Feedrate of 1” per min
N0090 (Part: Square) – name of the part
N0100 (Process: Plasma, DEFAULT, Plasma, 0.01 in kerf) – Tool to be used
N0110 G00 – Go to Home
N0120 X0.1113 Y-0.0904 – Move to this exact X, Y position
N0130 G04 P2000 – Pause for 2 seconds, this is in milliseconds
N0140 M03 – Fire the plasma torch
N0150 G04 P500 - Pause for .5 seconds, this is in milliseconds
N0160 G03 X0.0000 Y-0.0050 I-0.1113 J-0.0298 F40.0 – move to this X, Y position in an arcing movement at a feedrate of 40 inches per min
N0180 G01 Y2.0000 – Travel in the Y+ direction for 2 inches to X0, Y2
N0200 G01 X2.0000 – Travel in the X+ direction for 2 inches to X2, Y2
N0220 G01 Y0.0000 – Travel in the Y- direction for 2 inches to X2, Y0
N0240 G01 X0.0000 – Travel in the X- direction for 2 inches to X0, Y0
N0250 G03 X-0.1113 Y-0.0904 I0.0000 J-0.1152 – move to this X, Y position in an arcing movement
N0260 M05 – Turn off the plasma torch
N0270 G04 P2000 – Pause for 2 seconds, this is in milliseconds
N0280 G00 – Move to Home
N0300 M30 – End Program

CNC Information Free Community Site:
If you want to know more about CNC come over to http://www.cncinformation.com
You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

Learning CNC safety

2008-09-18T04:34:00.003-07:00

cnc safety

Just about any topic that is covered about working in a shop should start with safety.Safety should always be at the top of your mind.CNC is not different than any other shop topic that you will encounter. In fact, the highest levels of safety awareness should be maintained when using a CNC machine.

CNC machines don’t have a mind of their own. A computer gives them a command and they execute it.CNC machines don't care if they are cutting steel or a part of your hand. They don’t differentiate between materials. You need to be aware of this.

When you are Learning About CNC Machine you should take it slow. Do tests on a small scale, then watch and learn what happens. For example, why don’t you let your machine “cut air” for a while when you first get it. You don’t need to put it right to work cutting material. Why not create a simple program, and let the machine cut the air instead of material. Better yet, why even run the spindle during the test.

Every CNC Machine has quirks that you need to learn.Every CNC machine has a different working window. Every CNC machine is just a little bit different then the rest of them.CNC safety requires that you learn about your machine before you use it.

Generally, with a CNC Router, we are machining something. While machining, “chips” are being thrown off. Sometimes at a very rapid speed. Here is where safety glasses, face shields and material barriers come into play. Use them!The CNC machine doesn't know that you're standing there in its way. In the words of every boxing ref before a match, “protect yourself at all times!”

A few ideas to keep you safe in the shop:
Always read the instruction manual before using your machine
Always follow manufacturers recommendations
Always wear safety glasses
Wear appropriate Personal Protective Equipment for your job
Use shields and barriers while machining when it is appropriate
Checkout and test your machine before running parts are going into production
Perform proper and routine maintenance on your machines
Perform checks on your machine for wear and damage

Always think safety!

CNC information site:
If you would like to know more about CNC, head on over to http://www.cncinformation.com
You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.