Today we finish up the Z motor upgrade for the CNC mill by measuring, making a motor mount and installing the motor and driver. We also spend some time tuning the motor performance in MACH3.

And as long as we're taking the mill apart, we'll take a tour of the CNC conversion, the limit switch mounts and the electronics enclosure.

STL files for the limit switch mounts are available here: https://www.thingiverse.com/thing:313...

The couplers are available from McMaster-Carr:
https://www.mcmaster.com/catalog/124/...
I used the 1" diameter set-screw versions.