Mares Proton - Remixed

Remixed from :
https://www.thingiverse.com/thing:4463781
(Ruscustus)

I had to include a small ring around the iner ring to make it more solid.
The original printed on a .4 mm makes the contact on only one string, which is not enough for a good strength.


Text from original design :

Mares Proton regulator rubber

Made with filaflex at 0.2 , it fix perfect, but i glued it to the metalic plate just in case... Tested and working same or better than original, seems indestructible.