Yet another Dampener. The others seem to slide off center too much for me. So I made this one to keep that from happening. I made two versions because I didn't have enough T-nut's of one size or the other to get the job done. M3 and M4 holes sizes.
Rubber golf balls from Amazon.https://www.amazon.com/gp/product/B00ZZPJMCC/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
11-22-16 Add a 1 bolt version.
3-12-17 Added a M5 version.
10-21-17 Please note that there will be some movement in you printer.This is by design. It's taking up the X and Y inertia and will in no way hurt or damage your printer in any way.
File the 2020 slot a little to fit.