Hi Hood, sorry I guess I wasn't clear. Let's start over. The first hole is to be drilled at -1.7250, .5250 in Quadrant 2 (upper left), Mach drills it in Quadrant 3 at -1.7250, -.5250. I did go into my motor settings and change Y axis DIR to Active Low. Now everything is running properly, but why didn't this occur when I first set up Mach?