Hello, guys!
The progress has been huge, and here is a quick list of what I’ve done recently:
-I’ve modeled a custom lazy susan bearing for R2’s head that runs on 6mm BBs
-The motor mount fot the 28BYJ-48 stepper motor is basically ready and it’s attachable to R2’s torso.
-I also made the head-turning system with a huge internal gear.

I still need to do some tuning; however it’s time for R2 to come alive. The 3D printing will probably take a couple of hours (or days).
Stay tuned!