Hello Everyone,
 I am new to Mach 3 and only recently returned to cnc machining. It's been over 20 years since I last ran a mill but I do remember that I could offset X Y and Z using the pendant while the program was running. (on the fly) Does Mach 3 have this capability? I have a vistacnc Pendant which I could program any function from Mach. I have a cutter path that I would like to use as the rough and semi finish without having to make new paths, just offset Z to remove some stock before going to the finish cut.
Regards,
Chris

You could MDI a G52 (temporary offset) but not while the code is actually running.
The other option is just to type a different value into the Z DRO before you run the code again. For example if you do your rough and find that you still have to remove 1mm  for your finished size, then you would just add 1mm to the Z DRO and run the code again.

Hood