Relates to machining and turning centers G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Example: O0001 Fixture offset, absolute mode N005 T01 M06 N010 G54 G90 S500 M03 T02 N015 G00 X3.0 Y2.0 Rapid mode G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command Safety blocks How to monitor G code groups Initialized G codes G code Most commonalities controls allow but three compatible G in codes command Commonly taught basicper CNC courses: Ignored Executed functions G codes are preparatory Some are modal, some are one-shot N005 G54 G90 G20 G80 Prepare the control for what’s coming Not always taught in basic courses: Only the last three will be executed Ignored Executed Only three per command Safety blocks How to monitor G code groups G codes! InitializedConflicting G codes N005 G54 G56 G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command Safety blocks How to monitor G code groups Initialized G codes G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G code commonalities The program check page lets you see all currently G codes Commonly taught ininstated basic CNC courses: FANUC 10M G(PROGRAM) codes are preparatory functions O0040 N00050 N045 G00 X2.0 Y1.; Some are modal, some are one-shot > N050 G01 Z-1. F3.5; N055 G00 Z.1; Current Gwhat’s codescoming Prepare the control for N060 G91 G28 Z0 M19 (RELATIVE) (DIST TO GO) X5.0234 X00.0000 Y4.3653 Y00.0000 Z2.3223 Z-0.2332 (F) 23.2 (ACT. F) (S) 543.0 (ACT. S) (G/D/H) (M) G01 G20 M03 G54 G23 M08 G90 G80 G40 Not always taught in basic courses: Only three per command Safety blocks How to monitor *** HOLD **** *** *** *** *** **** G codeMEM groups + POSITION PROGRAM OFFSET PRG_CHK Initialized G codes G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks Even with Fanuc controls…C A Description G20 – Inch mode G70 G21 – Metric mode G71 G50 – Spindle limiter G92 G70 – Finishing cycle G72 G71 – Roughing cycle G73 G72 – Facing cycle G74 G73 – Pattern repeating G75 G74 – Peck drilling G76 G75 – Grooving cycle G77 G76 – Threading cycle G78 G90 – One pass turning G20 G92 – One pass threading G21 G94 – One pass facing G24 G98 – Per minute feed G94 G99 – Per revolution feed G95 XY – Absolute motion G90 UW – Incremental motion G91 Turning center manufactures vary when it comes to G code numbering Used on imported turning centers: Used on Americanbuilt turning centers: G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G To find the related parameter/s, look in code commonalities Certain G codes areOperators automatically the Fanuc Manual in the describes the G code instated whensection you that turn the power on Commonly taught in basic CNC courses: Or G01 For machining centers: Or G91 G codes are preparatory functions G00areG40 G90 Some modal, G64 some are one-shot Prepare control for what’s Or G21 G17 the G49 G69 G98coming Or G99 Not always taught in basic courses: G20 G54 G80 Only three command Safety Youper can even change theblocks How to monitor initialized state for some G codes G code groups through parameter settings Initialized G codes G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks G code It iscommonalities not wise to allow the control to assume states Commonly taught initialized in basic CNC courses: Example: Many turning center programmers G codes are preparatory functions do not specify a G99 because Some are modal, some are one-shot feed per revolution is initialized Prepare the control for what’s coming Say a mistake is made calling a subprogram: Not always taught in basic Instead of M98, G98 courses: is specified Tuning center in feedSafety per minute mode Only three perplaced command blocks programmer doesn’t know it) How (yet to monitor They find the mistake (change G98 to G codemay groups M98), but machine Initialized G codes is still in per minute mode! If the machine behaves in an unusual way, look at the program check page! FANUC 10T (PROGRAM) Feed N045 G00 X2.0 Z0.1; > N050 G01 Z-1. F0.01; N055 G00 Z.1; N060 G00 X5. Z6. specified asO0040 0.01N00050 ipr (RELATIVE) (DIST TO GO) X5.0234 X00.0000 MachineY00.0000 is in feed Y4.3653 Z2.3223 Z-0.2332 (F) 23.2 (ACT. F) (S) 543.0 (ACT. S) per (G/D/H) (M) M03 G01 G20mode! minute G54 G23 M08 G98 G80 G40 MEM *** HOLD ****The *** *** *** *** check **** program POSITION page can + PROGRAM OFFSET PRG_CHK expose improperly set G codes! G code Safety commonalities blocks ensure that the machine is inin the proper states Commonly taught basic CNC courses: G codes Turning center: are preparatory functions Machining center: Some are modal, some O0001 O0001are one-shot N005 G20 G23 G17 G20 G23 Prepare theG40 controlN005 for what’s coming N010 G99 N010 G40 G50 G64 Not always taught in basic courses: N015 T0101 N015 G67 G69 G80 Only Safety blocks N020…three per commandN020 T01 M06 How to monitor . N025 … Safety blocks G code groups . Initialized G codes G code commonalities Commonly taught in basic CNC courses: G codes are preparatory functions Some are modal, some are one-shot Prepare the control for what’s coming Not always taught in basic courses: Only three per command How to monitor G code groups Initialized G codes Safety blocks
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