Ender 3 Z leadscrew adjustable bearing

thingiverse

This is the newest addition to my project (https://www.thingiverse.com/thing:4182312), aiming to eliminate Z rod binding and wobbling on Ender 3. This upper bearing support is adjustable, and in combination with my other project parts, allows you to have a straight and secure Z rod without any binding or wobbling. As the bearing used is bigger, I chose a 6001 bearing to fasten leadscrew inside quickly. The base part comes in two versions: left and right. For one version, you will need three T-slot nuts (I used M4 + M4x8 screws) and two M4x10 screws and nuts. For securing the Z-screw, I used two M3 screws and fastened them slightly. Assembling and adjusting are pretty simple, with no hidden traps. Here's how I did it: When everything is assembled, slightly unfasten all - motor mount, nut holder, and bearing. Drive the full length of the upper part up to the top position and fasten the Z-nut holder. Then drive down to the bottom, fasten the motor mount again. Next, drive up fully and finally fasten the bearing. Try moving it up and down a few times, and you're done. If you need any explanation, just ask.