2016-08-26 7:27 GMT+03:00 <[email protected]>: > I'm trying the G38.2 z-probe in an ngc call. I keep getting an error > "Probe move on line 6 would exceed joint 2's negative limit". > > Problem seems to be that G38.2 uses the current coord system. I've got > the Z-home working now, and machine coords knows the furthest it can go, > whereas the active coord system Z-value is meaningless for a max probe > target. > > I tried to prefix the G38.2 with G53 (machine coord operation), but I get > an error that G53 only works on G0/G1. > > Am I looking at the problem right? How can I make this "probe to a fixed > machine coord point"? > > This is how I probe tool lenght offset:
G53 G0 Z0 (max Z) G91 F600 G38.2 Z-100 (Z stroke) G1 Z2 F60 G38.2 Z-5 G11 L11 P#<_current_tool> Z0 G90 G53 G0 Z0 G43 It requires a toolchange before probing. So you can probe to a fixed machine coord using incremental mode after G53 Andrew ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
