Rancilio Silvia steam knob bushing / grommet for 22mm hole

prusaprinters

This is a trivial model to reduce the diameter of the hole that a steam knob goes through. I printed it in TPU and it fits very easily.I made the lip that goes on the other side of the front so small that I suspect a stiffer material like PETG or even PLA could work too but I have not tested them. Drop a make if you tried :)Printing:No supports are necessary if you use the classic perimeter generator. The Arachne will try to start printing the lip overhang in the air—see the last picture.