I built this small prototype to test several concepts: the tracks made from O-rings, a simple robotic claw, and wireless communications with Arduino.

This thing uses: My robotic claw http://www.thingiverse.com/thing:18339 Some parts from my previous designs http://www.thingiverse.com/thing:13298 Obijuan's Skymega board http://www.thingiverse.com/thing:14197 and battery pack http://www.thingiverse.com/thing:5079

See it move at: http://youtu.be/SQqVQEaMtno

UPDATE 3/8/2012: The part "front.stl" did not print correctly due to some dangling polygons. I have now replaced it with the correct file!

UPDATE 3/13/2012: Uploaded a folder with the scad files. Not very tidy though...

Print and assemble! It's pretty straight fordward. I used O-rings for the tracks (80 mm diameter). You'll need two M6 bolts and nuts, as well as 8 M3 bolts and nuts.

The servo holder is designed for two Futaba S3003 servos. You'll need to modify them for continuous rotation.

Assemble the battery pack with 8 3M nuts and bolts