Fanuc CNC Custom Macros by Peter Smid

By Peter Smid

Fanuc CNC customized Macros: Programming assets for Fanuc customized Macro B clients is a useful better half to the author’s top promoting CNC Programming guide. those programming assets offer a normal advent to the topic of macros (known as customized Macros or consumer Macros). clients study what macros are, easy methods to improve them, and the way to exploit them successfully. Fanuc CNC customized Macros additionally explores very important similar topics and identifies numerous different precious subject matters during this more and more vital and intriguing box of CNC programming.

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Languages mentioned earlier, such as various forms of Visual Basic™, C++™, the old Pascal™, Delphi™, Lisp™ - including AutoLISP™ from the makers of Autocad (the most popular CAD software for personal computers), and many others, offer excellent platform for learning. One skill that is very important to understanding macros, is the deep knowledge of the Preparatory Commands (G-codes) and the Miscellaneous Functions (M-codes) in a part program (both are reviewed in this handbook). Keep in mind that G-codes are reasonably consistent between different Fanuc control models (and compatible controls), although a lot of them are special options.

For example, the CNC program can use English or metric units of measurement. The control system has to be preset to that mode before any dimensional value appears in the program. Normally, we use the G20 command to select English units (inches) and the G21 command to select metric units (millimeters). Other common examples of preparatory commands include the type of tool motion (G00, G01, G02, G03), absolute and incremental mode (G90, G91), and many others. The key to programming any G-codes is that the desired mode has to be selected before it is used.

Although most controls have the same defaults, it is important that you know them for each control individually, because they can be permanently changed by the vendor or the user. Typical default settings are identified with the t (diamond) symbol in the reference tables. Defaults of several G-codes may be set by the vendor or the user, and may differ from the typical list. They are G00/G01, G17/G18/G19, G90/G91, and several others. To set a different default, you have to use system parameters, described in a separate chapter.

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