CR 10 Z Axis Manual Adjustment Knob and Bearing.

thingiverse

Taken from idea by baschz. It appears that all CR-10 machines are unique. The knob design created by baschz does not fit my leadscrew, and the Z-axis bearing on his machine is different from mine as well. I have redesigned it to create a completely new bearing that will fit all printers. This new bearing block utilizes the same screws and Tee nuts as the original and requires an additional 2 M4 x 10mm screws and nuts. The bearing is situated in a recess that can be adjusted in the Y direction, allowing for precise setting to each individual printer, accommodating any manufacturing tolerances. Installation Instructions: Remove the existing bearing and the ball bearing within it. Insert the 2 M4 nuts into the slots of the new part and secure the ball bearing. Attach the plate with the 2 M4 screws but do not tighten them yet. This will allow the bearing to align correctly with the leadscrew. Mount the new block to the printer using the screws on top, then move the Z-axis all the way to the top. Tighten the screws, which will secure the bearing in its correct Y direction. Home the axis and then remove the new bearing. Reattach it with the screws facing downward. Adjust the block in the X direction and tighten the screws. Install the knob.