Inserts for Vibration Damper Feet (for Anycubic Mega and Prusa i3)

thingiverse

This is an addon to the great "Vibration Damper Feet V2 (Anycubic I3 Mega + Prusa I3 MK3S)" from user wolwin_de. His thing can be found here: https://www.thingiverse.com/thing:4893231 The original thing from wolwin_de was made for Oehlbach shock absorbers. Despite these Oehlbach parts are not that expensive (around 12 Euros per four pieces), I wanted to create my own shock absorber, because I had a nearly full spool of TPU on my shelf and searched for the next usage for it. It was not going to be a mere copy of the Oehlbach product, because this has many spikes and I expected much stringing of the TPU filament if I designed my version like the original. Now my own shock absorber has a spiral on the top (better said on the bottom). The idea behind that is, that the contact surface between my shock absorber and the table top is minimized by the small top of the spiral. And also I expected that the sonic waves would decrease when they had to go through the windings of the spiral. I am not an expert for vibrations or sonic waves, maybe my ideas were wrong. But with wolwin_de's Vibration Damper Feet an my shock absorber under my Anycubic printer it works with much less noises. It definitely brought an improvement. Although you still can feel some low vibrations on the table surface. My recommendation: If you do not have TPU filament at home, better buy the original Oehlbach shock absorber. I can imagine that this performs even more. But with your own spool of TPU my version of the shock absorber will help you minimize the operating noise. How to print: Flexible material is usually not compressible. That's why you should provide plenty of free space between the lines of the infill to keep the printed part flexible. An infill of 15% worked fine for me. In my tests a cube infill was much better then lines or grids, the parts were easier to squeeze, due to the staggered layering of the lines. To avoid gaps in the surface of the part use four top layers. At the bottom two layers are sufficient. Use only one wall/perimeter, otherwise the parts would be too solid at the edge.