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Function G51 G53/G59 G66 G67 N0 G67 N1 G67 N2 G67 N3 G67 N4 G67 N5 G67 N6 G67 N7 G67 N8 G68 G69 G70 G71 G72 G74 G75 G81 G82 G84 G85 G86 G90 G91 M D * * * * * * * G92 G93 G94 G95 G96 G97 * * * * * * Meaning Correct tool dimensions Zero offsets Pattern repeat (roughing canned cycle following part's shape) Turning canned cycle Facing canned cycle Taper turning canned cycle Threading canned cycle Rounding canned cycle Grooving canned cycle Simple drilling canned cycle Multiple drilling canned cycle Slot milling canned cycle Roughing canned cycle along the X axis Roughing canned cycle along the Z axis Inch programming Metric programming (in mm) Scaling factor Machine Reference (Home) search Probing Turning canned cycle for straight sections Facing canned cycle for straight sections Turning canned cycle for circular sections Facing canned cycle for circular sections Longitudinal threadcutting canned cycle Programming in absolute coordinates Programming in incremental coordinates Coordinate preset Maximum S value limit setting Polar origin preset Axis feedrate F in mm/min. (0.1 inch/min.) Axis feedrate F in mm/rev. (0.1 inch/rev.) S speed in m/min. (ft/min.) (Constant Surface Speed) S speed in rev./min. Section 4.3 3.4 8.10 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.11 8.12 2.1 2.1 6.5 3.1 6.6 8.13 8.14 8.15 8.16 8.17 2.2 2.2 3.2 4.2 3.3 4.1 4.1 4.2 4.2 "M" means MODAL. In other words, that once the "G" function has been executed, it remains active until another incompatible "G" function, M02, M30, EMERGENCY, or RESET is executed or the CNC is turned off and back on. "D" means BY DEFAULT. That is, that they will be assumed by the CNC on power-up, after executing an M02, M30 or after an EMERGENCY or RESET. One block may contain all the desired "G" functions and in any order except: G20, G21, G22, G23, G24, G25, G26, G27, G28, G29, G30, G31, G32, G50, G51, G53/G59, G72, G74 and G92 which must be programmed alone in a block for being special. If incompatible "G" functions are programmed in the same block, the CNC assumes the last one. Chapter: 1 PROGRAM WRITING Section: PREPARATORY FUNCTIONS (G) Page 5