Hi,
The files posted in reply #22 was my attempt to solve the assignment that you, Rich, gave me in reply #20; the files run fine here, too. So I guess I can say that with the original posted info, there never was a problem.
I have a number of .nc-files that run fine.
However, I have a vast number of .nc-files which in Mach3 open with crop circles. They're all exported as .dxfs [dxf-option: R12 _ natural] from Rhinoceros, opened in CamBam in which they are processable and editable [profiles, drills, holding tabs etc]. Toolpath generated, then Gcode.
I can say with some certainty that the problem is not with Rhinoceros, since I have .nc-files done this way, who have no crop circles. And the .dxfs when opened i CamBam show no sign of crop circles, neither the ones that turn out to run fine in Mach3, nor the ones that come up with crop circles in Mach3.
I am sorry that I have sent a wrong .dxf-file, the correct one in relation to the screenshot in #25 you find attached to this post.
We are on the same level here: You have opened the .nc-file and you have experienced the crop circles, although both the Gcode had G91.1 in the prior section, and Mach3 was set to Incremental, right?
Is there any way that Mach3 can assume another IJ mode setting than the one that shows in the Gcode, is there any way that those crop circles are produced by some other instance than the G91.1/G90.1//GenConfig >IJmode:Absolute / Incremental setting?
best regards
Anders