5 Abbreviations used by programmers and operators.2.3 List of M-codes commonly found on FANUC and similarly designed controls for milling and turning.2.2 List of G-codes commonly found on FANUC and similarly designed controls for milling and turning.The same concept also extends to noncutting tools such as forming or burnishing tools, photoplotting, additive methods such as 3D printing, and measuring instruments. The two most common situations are that, within a machine tool such as a lathe or mill, a cutting tool is moved according to these instructions through a toolpath cutting away material to leave only the finished workpiece and/or an unfinished workpiece is precisely positioned in any of up to nine axes around the three dimensions relative to a toolpath and, either or both can move relative to each other. G-code instructions are provided to a machine controller (industrial computer) that tells the motors where to move, how fast to move, and what path to follow. It is used mainly in computer-aided manufacturing to control automated machine tools, and has many variants. G-code (also RS-274) is the most widely used computer numerical control (CNC) programming language. Generally there is one international standard- ISO 6983. Many, mainly Siemens Sinumerik, FANUC, Haas, Heidenhain, Mazak. For the photoplotter format, see Gerber format.
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