I have no idea why? Drew this up in SharkCad, Cambam next. I tried changing the IJ to inc to see its already there.

Have absolutely no idea how to fix this instead of redraw it in Cambam. Would be nice not too have too?

Gcode below if someone can help, would appreciate it a lot. Sorry not allowed to paste all the code so attached the file. B

Change the IJ mode in config or the cam system

Hi Graeme,

You will see mate I tried that. And was unsuccessful. Not sure whats going on here - I have tried everything that I have come across in research to do. My machine has been so good until this problem.

Whats strange is the third computer I redrew this up on created a code I can use. I guess I still need to get to the bottom of this. B

Looking at the Gcode file that you posted, it appears that part of it has been compiled using Absolute IJ Mode and part of it compiled using Incremental IJ Mode. Mach3 is a little fussy in this respect and so it rejects running the Gcode.

It may not be that easy to do but if you could note the line numbers causing this problem you could then use notepad to edit the Gcode file to add G90.1 or G91.1 (as appropriate) preceding each problem line.

Tweakie.