Quote Originally Posted by Ger21 View Post
The first line has nothing to do with why it's drilling into the work piece.

Also, someone needs to fix that post, as G90 and G91.1 should not be on the same line.

The MAch3 post as it stands in Fusion has some issues that I do not like either. For example it uses g91 and g91.1 that make your code be incremental and not absolute. I only noticed that it was using these as Ger's screen has a nice bar at the bottom telling what is active.

The Linxcnc post is significantly simpler and I would recommend you give that one try.