One/TwoUP Zip Tie Backing Plate (customizable)

A simple plate designed to prevent crushing the mdf of the Oneup or Twoup when securing bearings with zip ties. I've included the SCAD file so you can play with different thicknesses.

My OneUP hasn't arrived yet, so this is untested. May need some tweaking...

UPDATE: My OneUP arrived today and I got to test these. They work really well. The keys fit the slots fine, and the ziptie slots line up like I had hoped. I use 4mm for the base plate and 1mm for the slot key. The slot key can be as thick as 3mm (maybe 4) and still work great. The extra thickness of the slot key will provide even more "crush protection" (even though it's probably not needed. I think 4mm is just about perfect for the base plate thickness. It allows the small ziptie blocks to fit perfectly beside it (makes it look neater), and provide plenty of strength. See instructions for more details.

Note: I've added files for the upper extruder bearing and for the gantry (z-travel) bearings. (Nothing for the lower extruder bearing.)