Have you created some sort of guide in order to bend those two rounded (red-colored) lengths of metal into the curves? I would be afraid that during a match you are going to get bumped by another robot, bending those rails ever-so-slightly, messing up your trajectory. If you had a nice cardboard guide cut out in the right shape, you could just re-bend the metal after the match back to the original shape.
Super sweet
What sort of other shooter designs did kids in your class come up with?