Mach3 doesn't turn the plasma on and off at the beginning of the metal item to be cut, instead it's sending the instruction to turn on and off the plasma on X=0, Y=0.

This is happening with “SheetCam TNG with Mach3” and ArtCam, so the problem must be something in the Mach3 configuration.

Can somebody help me with this?

ralaco

You should post the code that is done on your software so that anyone can help

You just need to tweak your post. I use Artcam and the torch turns on when it should after touching off with a G31.   I made a post specific to my machine. I've tried Sheetcam as well and it produced the same results after making my own post.

Artcam gives you a little more control as it's posts allow you to add code on plunge and retract moves. It appears that Sheetcam puts the torch control and touch off code in a first feed rate move which can produce some strange results sometimes.