yep! Switchoffset = [your switch offset value in decimal inches]
To find the value:
1. Perform a REF form MACH screen on Z. It will move down and stop
2. Reset Z DRO in MACH to 0
3. Jog Z up until you can slips a piece of paper between the tip and the metal
4. Read the Z DRO. That is your net switch offset
TOM Caudle
www.CandCNC.com