Prusa i3 mk2s, Vibration Damping Z Axis Top Guides

thingiverse

This is a Z-axis top left and right set with vibration damping O-rings. The O-ring is a #48 O-ring, measuring 5/8" in outer diameter, 3/8" in inner diameter, and 1/8" thick, readily available at any hardware store's plumbing section. Z-axis threaded rods rest against the O-rings instead of plastic on stock Prusa guides. This eliminates noisy vibrations when the Z-axis threaded rods occasionally come to life from machine vibration. The geometry of the O-ring still allows for the threaded rod to float inside the guide, as intended in the original design. A file is used to clean up the 8mm hole for smooth rods, just a little, to tune the press fit onto the threaded rods. Excessive force should not be applied when pushing onto the smooth rods.