Quote Originally Posted by whensparksfly View Post
I have ajuster the motor tuning its not perfect but very close.now when I move the dro it's movement matchs the z axis.
Told you this before The steps per is not something that you tune or tweak. It's Calculated and Fixed number based off mechanical and Drive parameters.
Motor tuning and Steps per are completely different things. Motor tuning won't make the machine move wrong distance.! (well it will if over tuned but that would be missed steps and very small amounts)

Your replies are not helping us help you.!! . . Be more clear please. Comments like " zero all the axis press reg move up the z from the materal" don't help tell whats happening or not.