TPU Dampers for Creality - Ender 3/5

Hi Everybody,

Tired of having noises and vibrations in the table of the printer, and after realized that one of the main reasons of the lack of quality in my prints is the ineffectiveness of the original dampers (feet, silentblocks...), I have decided to create a set of dampers that allows the printer to move laterally enough to absorb the inertias generated by the carriage.

In order to absorb the inertias the dampers must have 3D flexible movement (XYZ). The majority of the designs I have seen works good in Z, but not so much in XY, or the other way around. The feet dampers that got my Ender 5 originally are very sturdy and did nothing in that matter. This probably apply to al Enders and CRs too.

This model is a kind of sock to put to the original feet of the Ender and it is designed for TPU. It works great. The design preserves the shape of the damper during movements because of its round shape without weak points, but also in X and Y because the original feet gets inside of the ball and has movement inside.

In order to work well absorbing inertias and shocks the printing settings are crutial. The minimum infill and wall possible but enough to bear the weight. This is the trick of this model. It resides in printing it with the just amount of TPU. Nobody knows your filament and how to print it better than you. In my case the best compromise between strenght and flexibility to absorb the inertias was:

• 0.6 nozzle.
• 0.3 layer height.
• Only 1 line wall.
• 0.6 top/botom.
• 8% infill.

The first attempts with 0.8 wall and top/bottom and 12% infill I got a very sturdy piece, not flexible enough for shocking resistance. Now it works really good but I have to recognize that there are a few layers that could have been better printed.

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