I'm using CamBam to generate G code and Mach3 complains about a G2 command no matter how I define the hole in CamBam. The error message is:

"Radius to end of arc differs from radius to start"

I've tried using a drill operation and a profile operation with the same result. I haven't been able to ask CamBam about it and I'm beginning to wonder if maybe Mach3 has too restrictive settings on G code tolerances that can be lessened. I don't know G code well enough to puzzle out the G2 command. The hole is 1" in diameter cut with a 3/16 end mill:

G2 F20.0 X1.0469 Y1.2635 Z-0.0425 I-0.4063 J0.0

Change your IJ mode in General Config.

Change your IJ mode in General Config.

That's it! Thanks.....