Leadscrew Guide for the HyperCube Evolution. It fixes the TR8 leadscrew in place with a 608 bearing at the top to improve z layer consistency. This version has a screw-on plate to really fix the bearing in place.

I run a non-enclosed printer, so PLA is perfectly fine. The top attaches with M3x6 screws. For heat-inserts I recommend the smaller variant of the M3 inserts.