Have your rubber screw bumpers degraded? Hearing some clacking when you step? Just print some of these out and replace the broken ones and you'll be good as new.
The original SMX rubber screw bumpers basically just stop the screw spacer from clacking against the panel during play. You can't just buy replacement bumpers, so if you have the ability to print replacements, go for it!
This model was printed using Bambu TPU 95A HF, I have not tested with any other filament, but this works fine.
You will need 4 for each panel, for a total of 36 if you want to replace them all. For printing many at once, I suggest print by object and fill your plate with as many as you can (I think I managed to fill my plate with 13 max at a time.
I have replaced all of the rubber screw bumpers with these on my stages and they work perfectly fine. Dampens the sound the screws clacking against the panels.
I offer no guarantees, so use at your own risk.