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Centroid CNC12 Acorn G-code list

79 G-codes. Pick a code for the format, the addresses, an example program and what to watch out for.

Code	Meaning	Machine
G0	Rapid positioning	Mill, Lathe
G1	Linear feed move	Mill, Lathe
G2	Clockwise arc or helix / Clockwise arc	Mill, Lathe
G3	Counterclockwise arc or helix / Counterclockwise arc	Mill, Lathe
G4	Dwell	Mill and lathe
G9	Decelerate and stop, one block	Mill
G10	Set parameter or offset from program / Set tool offset or parameter	Mill, Lathe
G17	XY plane select	Mill
G18	ZX plane select	Mill
G19	YZ plane select	Mill
G20	Inch units	Mill and lathe
G21	Metric units	Mill and lathe
G22	Work envelope on	Mill and lathe
G23	Work envelope off	Mill and lathe
G28	Return to reference point 1	Mill and lathe
G29	Return from reference point	Mill and lathe
G30	Return to reference point 2 / Return to reference point 2 to 4	Mill, Lathe
G32	Single thread pass	Lathe
G40	Cutter compensation cancel	Mill and lathe
G41	Cutter compensation left / Nose radius compensation left	Mill, Lathe
G42	Cutter compensation right / Nose radius compensation right	Mill, Lathe
G43	Tool length compensation plus	Mill
G43.3	Tool length comp with 5th axis tilt	Mill
G43.4	Rotary tool center point	Mill
G44	Tool length compensation minus	Mill
G49	Tool length compensation cancel	Mill
G50	Scaling and mirroring off / Set position or max spindle speed	Mill, Lathe
G51	Scaling and mirroring on	Mill
G52	Local coordinate shift	Mill and lathe
G53	Rapid in machine coordinates	Mill and lathe
G54	Work coordinate system 1	Mill and lathe
G55	Work coordinate system 2	Mill and lathe
G56	Work coordinate system 3	Mill and lathe
G57	Work coordinate system 4	Mill and lathe
G58	Work coordinate system 5	Mill and lathe
G59	Work coordinate system 6	Mill and lathe
G61	Exact stop mode	Mill
G64	Smoothing mode or cancel exact stop	Mill
G65	Macro call with arguments	Mill and lathe
G68	Coordinate rotation on	Mill
G68.1	Transformed work coordinate system on	Mill
G69	Coordinate rotation off	Mill
G70	Profile finishing cycle	Lathe
G71	Rough turning cycle	Lathe
G72	Rough facing cycle	Lathe
G73	High speed peck drilling cycle / Pattern repeat cycle	Mill, Lathe
G74	Left hand tapping cycle / Face groove or peck drill cycle	Mill, Lathe
G75	OD or ID groove peck cycle	Lathe
G76	Fine boring cycle / Multi pass threading cycle	Mill, Lathe
G80	Canned cycle cancel	Mill and lathe
G81	Drilling cycle	Mill
G82	Drilling cycle with dwell	Mill
G83	Deep hole peck drilling cycle	Mill, Lathe
G84	Right hand tapping cycle / Tapping cycle	Mill, Lathe
G85	Boring cycle, feed out	Mill, Lathe
G89	Boring cycle with dwell	Mill
G90	Absolute positioning / OD and ID turning cycle	Mill, Lathe
G91	Incremental positioning	Mill
G92	Set current position / Single pass threading cycle	Mill, Lathe
G93	Inverse time feed	Mill
G93.1	Inverse time with velocity scrubber	Mill
G94	Feed per minute / Face turning cycle	Mill, Lathe
G96	Constant surface speed	Lathe
G97	Constant surface speed cancel	Lathe
G98	Canned cycle return to start height / Feed per minute	Mill, Lathe
G99	Canned cycle return to R plane / Feed per revolution	Mill, Lathe
G117	Tilted arc plane based on G17	Mill
G118	Tilted arc plane based on G18	Mill
G119	Tilted arc plane based on G19	Mill
G173	Compound peck drilling cycle	Mill
G174	Compound left hand tapping cycle	Mill
G176	Compound fine boring cycle	Mill
G180	Compound canned cycle cancel	Mill
G181	Compound drilling cycle	Mill
G182	Compound drilling with dwell cycle	Mill
G183	Compound deep hole drilling cycle	Mill
G184	Compound tapping cycle	Mill
G185	Compound boring cycle	Mill
G189	Compound boring with dwell cycle	Mill

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