Working ball robot

This is a 160mm wide ball robot prototype, wich uses two modified servos as motors, an arduino and a bluetooth module for control and a entirely 3d printed frame.

I will complete the full instructions soon.
If you want a smaller robot, check my version 2 here:
http://www.thingiverse.com/thing:1458520

More projects here: https://juangg-projects.blogspot.ca