Tripod mount ring for Canon EF-EOS R adapter.
Also functions as minimalistic L-Bracket, with no obstruction for use of the flip out screen.

I printed mine in PLA. Set a high shell count to make the part 100% solid. Used layer height of 0.15mm, as this seems to be optimal for strong layer adhesion on my printer.
Needs support in the opening for lens release button.
Feels quite steady, solid and vibration free when mounted on tripod. But if you print one, use it at your own risk :-)

Was first thinking of making it compatible with Peak Design capture clip, but decided it would be to weak and risky in plastic. Instead I made the foot so short, that I can still use the the clip and a Dual plate mounted to the camera.

I also uploaded CAD file, in case somebody wants to modify it.

Two bolts, M4 x 30 with nuts.