- This is the first full version of the BTU mod I created.
- v1 and v2 were just test pieces that mounted to the front screw
holes of the trackball to check clearances. They weren't really a
usable top as they didn't have anything other than the ball well.
- This part has been test printed on an Ender 3 and works well.
- These files were created in Rhino by deleting the surfaces that made
up the bearing sockets and patching the holes that were left
- This is a good base for the BTU top or any other mods people want to
make
George Bryant