The DRO was showing a zed depth of 0.0621 and 0.0619 when it should have been 0.0625. I programmed in ArtCam Express to make one pass at 0.0625, simple code. Profiling cutting plexiglas for insert on doors. Z zero is at top of matl, cutting full depth of 0.0625, one pass, profiling. As mentioned the DRO was showing only 0.0621 or 0.0619. Is there a tolerance in Mach that I am missing?