[hoss2006]

Originally Posted by meincer 5. The Z axis took a bit of fitting to eliminate binding. The placement of the base block (i.e. the bottom of the ballscrew) is critical. Generally it seems that if it doesn't bind near the top of the Z axis travel it is fine as it goes lower.

good point.
One of my pics shows mine needed a .045 shim on the left side to eliminate binding.
others may vary.
Hoss