Getting error Art Code 9991 when I close the program. Can someone tell me what it means please?
Also the screen won't maximise and although the G Code will load, the generated toolpath is nothing like what it should be. In the pic it shows large circles when it should be text.
Any ideas what could be causing this behavior please?
Thanks

In the pic it shows large circles when it should be text.
Any ideas what could be causing this behavior please?

Change the IJ Mode (Config. / General Config.)

Ideally your Gcode file should contain the G90.1 / G91.1 (as appropriate) - Please refer to the Mach Manual for further details.

Thanks. I will check it out

I forgot to say, if you change the IJ Mode you then need to regen. the toolpath display to remove the Crop Circles.

Tweakie.

Done that. All good now. Thanks

You may not believe I had a problem with the same error and accidentally discovered that the cause was a bad mouse connector when you move or turn off the mouse MACH3 freezes but only with one type of mouse and all the others worked normally
Maybe help someone
Hello