First CNC post ever
I press start and...
My Z myseriously crashes 23mm before my machine path starts???
This is very destructive!!

After years of success, my computer died. I have now spent weeks re learning what I thought I already knew..I finally have a different computer nearly calibrated and functioning.

I had to switch a din pin on the z driver to get the proper direction, the direction settings in configuration didn't seem to do anything. Every machine path I try seems to be preceded by a random -- negative value --, causing an unworkable outcome..

I dont use Homing and I have never mounted my limit safety switches.

I also tried checking the active low box in direction in z configuation but that didnt work

Can anyone help me??

Thank you so much in advance
Dirk