Shooter Prototype -- The final shooter looks different than this, but is of a similar idea. (Much faster wheels, more rugged design -- this one was cobbled together from our orbit ball shooter from The Game Which Shall Not Be Named and some scrap wood.)
Octocanum barrier hopping -- Aside from the spaghetti wiring, this is our finalized drive train! There is virtually no stress on the wheels as they traverse the barrier, and the octodrive gives us the maneuverability we want with the pushing power we will almost definitely need!
Hopper/Conveyor -- Our primary goal was extreme consistency in feeding balls to the (unmounted) shooter; also, our hopper is easy to retrofit into a vertical hopper for dunking (if we ultimately fail in achieving the shooting accuracy we need to be successful in that strategy).
Aside from the drive train, our goal is that everything is modular and can be removed/replaced/retrofitted in less than ten minutes.