Atomic Feet for Ender-like 3D printers or other CNC machines by π²Studio

I've been trying to apply a solution for a long time to put my 3D printer on quiet feet. Among other things, it was necessary to raise the printer slightly above the table so that the controller fan and power supply could fit above. Another requirement for the feet was that they should be long-stroke and soft enough, but they could also dampen various vibrations in all directions well.

I was looking at a good solution for squash balls, but they didn't suit me because the size was too large, and such a system did not allow to dampen resonant vibrations. And choosing up the balls would lead to unwanted expenses.
An intermediate solution was the construction of a foot similar to the legs of a television tower (such as the Eiffel or Ostankino), where each support was a progressive arched spring, where resonance should not occur. This system worked well, but had rather large dimensions.

Then, in my marketplace, I decided to find suitable balls with a diameter of 4 cm across the width of the printer base profile. And I found this pet toy. The ball consists of intertwined silicone rings, and the principle of operation strongly reminded me of a previous idea. The ball has good elasticity, strong enough compression, and at the same time, various vibrations will be well absorbed between the intertwined elements.
All that remains is to develop a suitable model and mount it on the printer! Yes, most importantly, don't forget to remove the cowbell from this ball. :)

The ball is attached by 5 hooks located inside the foot. You need to fill them with a wooden stick with a blunt end. Do not tuck the hooks into the loops in the glued place. Use a little silicone oil to make the installation easy. If the seams accidentally come apart, they can be glued back together with a drop of cyanoacrylate glue after degreasing this place.

The height of the mounted foot under the influence of the printer's gravity will be ~30 mm. For your convenience, I made 2 more foot models with a rise of 5 and 10 mm.

I want to say that when working, the printer will start to oscillate with an amplitude of up to 5mm, but this is normal. All the unwanted vibration that has been remained on the printed model will now simply be absorbed by these legs! This will definitely help those who do not have the ability to use Input Shaper on their machine. And those who have it, it will be necessary to recalibrate it, since the influence of parasitic resonance will be less. Yes, and the printer has also become much quieter, since the sounds of the steppers are no longer transmitted to the surface of the table!