Silent CR-10 z-rod bracket with TPU bushing

thingiverse

This is my upgraded z-rod mount for the CR-10. The original had some unwanted play between the bearing and its housing, which resulted in annoying noise. To eliminate this issue, I redesigned the bracket with a TPU bushing that tightly fits around the bearing, eliminating any movement. This ensures that vibrations from the z-rod don't transfer to the printer's frame. Additionally, you'll want to dampen the z-stepper motor's vibrations; I highly recommend using this damper: https://www.thingiverse.com/thing:2848706. It secures the damper under the stepper motor and isolates it from the frame. I based my design on the original bracket and have found that it operates smoothly and silently on my printer. The lid and bearing sleeve should be printed in a flexible material like TPU to ensure a snug fit. The main bracket, however, can be printed with any material; I used PLA for mine.