[commodoredl]

This year our Breakaway robot used a tank tread drive system. In order to save money, we designed it to use triple-wide drive chain run on two sprockets, rather than buying belts from Brecoflex. I think the chain was available through some surplus store; I don't know where we bought it. This worked out well for us since the chain was wide enough that we could use it as a track and it never slipped in competition. To make it legal, we attached small pieces of hose using bolts, as you can see in this picture.