Here is my first Ardbot robotics experiment. Pretty rough in places, but the plan is to replace the Arduino with a Fabduino, and to replace the breadboard with a much smaller milled circuit board, both of which will be fabricated in the fab lab. I will keep the re/purposed spray paint plastic caps as wheels, however - they work pretty well!
The servo motors were scavanged from a local hobby shop, and modified so they rotate continuously.