Prusa i3 MK3 Z axis vibration damper

thingiverse

This is a super fast-to-print z-axis vibration damper designed for the original Prusa MK3. On the MK2, the Z-top parts had a hole for the Z-rods. For my MK2S, I previously created some z-rod vibration dampers that can be found here: https://www.thingiverse.com/thing:2598837. The new Z-top parts for the MK3 are closed at the top but still have a larger hole for the z-rods than the rods themselves, which is as per design and intended to allow some wobble. Giving the z-rods space to move is generally recommended, however on my MK3, the rods touch the z-top parts at certain z-heights, generating a rattling noise. To solve this issue, I quickly designed a small damper that can be slid over the top of the z-rods to prevent vibrations. The walls are very thin (only one perimeter) and allow for ample room for the z-rods to wobble, while the top of the damper is only 0.2 mm thick so it does not touch the z-axis top part. Print this with TPU or TPE for optimal results. The noise has been eliminated and I have observed no adverse effects on print quality. __________________________________________________________ Update 26-05-2018, revision 1: I increased the single wall from 0.42 mm to 0.45 mm so that 'detect thin walls' does not need to be set (depending on your slicer and settings).