A block is composed of words.Ī document that contains all of the instructions and information necessary to create and inspect a quality part. B axis movement can be in a clockwise or counterclockwise direction.Ī single line of a part program. The rotational axis describing motion around the Y axis. The American Standard Code for Information Interchange is more commonly known as ASCII text. A universal language in which CNC machines communicate. The address in a G code, for example, is the letter 'G.'Īmerican Standard Code for Information InterchangeĪSCII. The letter used within a word that signals the essential function of the word. A axis movement can be in a clockwise or counterclockwise direction. The rotational axis describing motion around the X axis. After taking this class, users should be able to describe how G code programming is used to create a part program. However, to create or edit a part program for a CNC machine, a programmer must understand the different codes in G code programming and what they do. Programmers often rely on computer-assisted programming software to efficiently create part programs. F and S codes set the feed and speed, T codes signal the correct cutting tool, and M codes complete other miscellaneous functions. X, Y, and Z codes determine the cutting operation location. G codes describe the operation that the machine will perform. Part programs consist of blocks, which contain words that are a combination of a letter address and a numerical value. Programmers use G codes to create part programs, which direct CNC machines to create a part. “Basics of G Code Programming” provides a comprehensive introduction to G code programming.

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