Z axis moves below set zero

[lucan07]

It's impossible to produce what was claimed. Can only be one or the other can't work in both units without axis scaling.!

With the tuning steps per unit entered at 2540% of required value would be the only way it could occur, which is what I was saying because it cannot work in both units.

[JAZZCNC]

With the tuning steps per unit entered at 2540% of required value would be the only way it could occur, which is what I was saying because it cannot work in both units.

Yes understand but not very likely that two axis would be correct for MM and one exactly 2540% different.!! Plus if sparks used Auto tuning correctly then Mach would take care of Steps per. Axis scaling is the only way it can happen if machine is setup correctly.

[lucan07]

Having helped him on other threads, I know its unlikely that it is in inches, I was pointing out how far it would have to out in order to be doing what is claimed. I was tempted and perhaps should have given the only sensible response RTFM.