We went through mainly two different versions of our robot. Our first version was driven by four wheels; two motors that each drove two wheels using our gear-chain set-up. This page explores the design behind the first version, as the design for the final version is covered in the design page. Though we were pleased with the design, in the end we were forced to redesign our robot because this set-up created too much friction, and the given motors could not support it.
The skeleton structure of the four-wheeler, with gears/chains and motors assembled.	A closer look at the gear set-up (inside left).
Underneath the robot.	Looking inside and under the robot at the drive set-up.