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7-Introduction to CNC code - G Words

G words, commonly called G codes, are major address codes for preparatory functions which involves tool movement and material removal. These include rapid moves, lineal & circular feed moves, dwell, and canned cycles. Through the years many of the G-codes have been standardized, but others are unique to a particular controller. The commonly used G-codes are briefly summarized below:

There are many other special feature and advanced machining G-codes that aren't commonly used, and therefore not discussed in this basic module. See the "G" glossary listing for explanations of all of the G-codes

Note: always consult the operator's manual for the G-code definitions for your specific controller.

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