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Honest reviews of CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications from real users. CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications is written by the author of the bestselling CNC Programming Handbook and the recent release Fanuc CNC Custom Macros, this practical and very useful resource covers several programming subjects, including how to program cams and tapered end mills, that are virtually impossible to find anywhere. Other, more common, subjects, such as cutter radius offset and thread milling are covered in great depth. This book presents detailed part programming suggestions for a variety of machining operations. Also it includes discussions on the following major subjects: thread milling methods, knurling, programming cams, part reversal methods, using pallet changers, applying special grooving and threading techniques, and many more. You will find numerous illustrations, charts, tables, and practical examples, allowing users to fully understand all concepts. Discover many methods presented can also be adapted to programming methods using a CAM system.

CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications available from here for $63.31 plus free shipping.

Table of Content:

1. Part Program Development 2. Calculating Contour Points 3. Formulas for Contouring 4. Using Cutter Radius Offset 5. Part Reversal in Milling 6. Using Tapered End Mills 7. Special Purpose G-COdes 8. Tool Length Offset Change 9. Block Skip Applications 10. Standard and Rigid Tapping 11. Polar Coordinates 12. Subprogram Development 13. Turning and Boring in Depth 14. Programming Tapers 15. Techniques for Grooving 16. Techniques for Threading 17. Restrictions in Threading 18. Practical Thread Milling 19. Knurling on CNC Lathes 20. Four-Axis Lthes 21. Pallet Changers 22. Working With Planes 23. Programming CAMs 24. Introduction to Macros 25. Did You Know That? 26. References and Resources

Some reviews on CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications:

“Excellent advanced book on CNC Programming topics” - Calvinnme

This handbook by Smid on the subject of CNC programming tackles the subject from a different angle than his bestselling “CNC Programming Handbook”. That book is a more basic one aimed at beginners. This book is more advanced and contains several programming subjects that are very difficult to find either in other books or on the web. Even where there is overlap with the author’s “CNC Programming Guide”, this book provides much more depth of coverage on various subjects than that book does. As is standard with this author, this book includes many clear detailed drawings that greatly assist in visualizing the procedures covered. Whenever applicable, a complete programming example is provided. Equations and all tools used in each example are boxed and clearly labeled. As always, this author’s instructions and explanations are clear and detailed.

“Another well written book by Peter Smid” - Peter E

Technical readers who are familiar with the CNC Programming Handbook by Peter Smid will, without doubt, also react favourably to this book. The format is similar and there are hundreds of excellent illustrations and programming examples. While the previous book dealt mainly with theory and concepts, this work moves on to real life applications of these concepts. Examples include the use of tapered endmills in programming, multiaxis lathes, custom cycles, knurling, and other tips and tricks.

Find review and best offer on CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications from this site.

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• PRACTICAL EXAMPLE OF CNC LATHE PROGRAMMING

CNC aka Computer Numerical Controlled Machines are useless without any programming. CNC’s rely on pure hard codes in order to execute commands that the Machine Operator wants to do, therefore not only is it needed to learn the mechanics of the whole Computer Numerical Controlled Machine but it is also at the utmost importance that the Machine operator knows how to communicate with the machine, and that is by using G-codes.

Preparatory code/ functions or much commonly called as G-codes are functions in the Computer Numerical Control programming language. The G-codes job is to manage the position of the tool as well as control the step by step commands during the actual work. Basically the G-codes are the most important part of the Computer Numerical Control Programming algorithm.

There are other codes involved in the programming of CNC’s such as M-codes that manages the machine, T-codes for managing the tools, and F-codes for the tool feed and tool speed controls. All of these codes are created in a Computer Aided Manufacturing (CAM) software.

G-codes as well as the others use the RS-274D as the recommended standard for the Computer Numerical Controlled Machines. This standard was developed by the Electronic Industry association during the 1960’s. These standards provide a basis for the creation of Computer Numerical Controlled Programs.

First designs of these standards came from punched paper tapes as the medium standard for data interchange, but now ASCII character bit patterns are the standard for the representation.

Lets discuss the g-codes further, as what I have said earlier G- codes constitute only a part of the Computer Numerical Control Program, in the whole programming algorithm, they are denoted by the letter G, Basically it is a code telling the machine what kinds of actions to perform in a step by step basis, examples of these actions would be rapid move, controlled feed moves that would bore holes, a work piece cut routed to a specific dimension, change a pallet, and set a tool information such as offset.

After creating each part of the codes, the algorithm is compiled in the Computer Aided Manufacturing (CAM) software. The CAM software basically use translators called post processors to output the code optimized for a certain machine type. Often times, post-processors are often used to allow users to enable further customization.

G-codes can also be used to create outputs for Computer Aided Design systems used to design printed circuit boards (PCB). Any software must be customized for each type of machine tool that it will be used to program. Some G-codes are written by hand for volume production jobs.

Some Computer Numerical Controlled machines use conversational programming. Conversational programming is an easier way to program CNC machines because it is more “user friendly” because it uses a wizard like program that hides the G-codes into plain view. Some Popular examples of this kind of CNC machines are the Southwestern Industries’ Proto TRAK, Mazak’s Mazatrol, and Mori Seiki’s CAPS conversational software.

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When a program is completed and sent to the Computer Numerical Control Machine, the programming process is over. All calculations were made and the algorithm fully written. But the question is the programmer’s job really finished? When is the programmer’s responsibility really over? And how can we evaluate the type of program that the Computer Numerical Control Machine programmer did?

The fairest and reasonable answer to those questions would basically when a part has been machined under the most optimized working conditions. Therefore the Programmer’s responsibility does not end after he or she finishes the program. We could say that the program at this stage is still very much in the development process, because most of the programming considerations were based on certain assumptions and there are a lot of external factors that may affect the outcome of the product.

Every Computer Numerical Control programmer should have an effort to be in the touch with the actual production. In the field of software development, Constant communication with your colleagues as well as actual machine operators of the CNC will help you to improve your own program. Because most of the time the CNC machine operators are a good source of constructive ideas, improvements and suggestions.

A good CNC programmer should talk, ask questions to them and most importantly listen to what they have to say. Programmers who never put their foot in the actual machining process and think they are always right are all on the wrong track. Exchanging ideas with CNC machine operators, asking questions and seeking answers is the only way to be fully aware of what is going on in the machine.

Whenever you start a Computer Numerical Control Program the first time it is important to check its Program Integrity. A new and unproved program is a potential source of problems. During Manual Programming in CNC, mistakes are more common than when the program is made in a CAM program.

A good way to look at a new program is through the machine operator’s perspective. Experienced Machine Operators take a direct approach when running a program for the first time. That means that they wont take any chances of mistakes with the actual running of a program therefore a good programmer must take note of any comments that the Machine operator will say about the program.

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