[Bob Steele]

We used this basic drivebase last year. The model utilizes Colson wheels with the VEX hex hubs. We actually used 6" pneumatics last year from WCD that worked great. The six inch solid rubber Colson wheels with these hubs are drop in substitutes. They didn't even require extra spacers.

This is a powerful 6 CIM SINGLE speed belt driven drive base. It performed extremely well in last year's game and we have altered the design to be a very strong platform that could be adapted to nearly any game. Our Stronghold robot had a section cut out of the bumper to allow the ball to be picked up easier.
This design could also be altered to make a cutout on one end if necessary.

The center of mass for this is extremely low and it is a very stable platform to start with.

We anticipate using this a test bed for programming as the electronics (not shown) are modular.

FYI we did current limiting in our code and never had a single issue with brownout for the entire season. The acceleration was impressive.
It is the first time in many years that we have gone with a single speed transmission solution (not counting 2015)
We probably won't be going back to a shifting transmission. This drive base did everything we could ask for.