$5.99
This is the digital STL file for a 3D printable adapter for connecting Canon EF lenses to EOS R camera bodies.
This attaches to EOS R camera body just like a normal lens, and then the EF lens attaches to the adapter and is held in place with the 3D printed spring latch.
This can be used with manual focus and auto focus lenses, though the auto focus will no longer operate on the auto focus lens since there are no electronics in this adapter.
Make sure to go into your camera settings and turn "release shutter without lens" to ON otherwise your camera will not take photos since it will not recognize that there is a lens on the camera while using this adapter.
All parts can be printed without supports.
See It In Action - https://youtu.be/s_sHjiLUa70