On Mon, Jul 07, 2008 at 10:19:44PM -0500, Jon Elson wrote: > > Interesting how this comes up every July! Well, no question the > touch-off menu in Axis works correctly, but I'm trying to figure > out how to do it from within a G-code program. I will have to > experiment with it some more next time I have the machine set up. > > And, yes, I have a piece of G-code laboriously created with > Bobcad/CAM to cut out a pattern of 12 pie-shaped holes for a > 3.15" boxer fan. The center of the fan is coord (0,0) and I > just set up a coord system for the offset to the center of the > fan's location.
I see what you're trying to do now. I still suggest that G92 is the way to do it. Say for clarity's sake you have your fan program in a subroutine called O100 and it cuts around 0,0. You want a fan every six inches. You have used touch-off to set the G54 system's origin wherever you want the leftmost fan to be. O100 call (cut leftmost fan around G54 origin) G0 X0 Y0 (go back to the center of the first fan) G92 X-6 (now set this point to be X-6) O100 call (cut second fan at X0, which is 6 right of the first) G0 X0 Y0 (go to the center of the second fan) G92 X-6 (now set this point to be X-6) O100 call (cut third fan at X0, which is 12 right of the first) G92.1 (clear G92 offset to go back to the normal G54) M2 ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
