4DThinker wrote:I know LinuxCNC will let you type in any number when touching off each axis. I also know there is a SET option in the CNC Shark control software to let you do the same thing. You Mach3 users hopefully have the same ability.
In Mach, one can press the Zero button or type in a number.
If I have to be very accurate with my zeroing I use the following procedure:
Chuck up a .5 dowel rod
Jog near the edge to be zeroed
Set jog to step .001
Put .500 bar between dowel and work
Jog until I feel a very slight drag on the bar.
Set Zero either +/- .75 depending on which end of the workpiece I want zero. That is done by simply typing in the value on the Mach Screen.