[Ianworld]

I'm not sure if this is what Blair was going for but this is what i'm envisioning. First place a ball on a cart like object that can carry the ball and make it travel on a short track. Then take a flywheel and bring it into contact with the cart to accelerate it. the cart should travel until it hits a stopper making it stop and any ball on it flying off. It seems like a nice compromise between a flywheel and some other sort cannon mechanism. You get consistency because you're always shooting the same cart object, but it isn't quite as fast and quickly repeatable as a straight flywheel. If you springload the cart so that it automatically comes back you wouldn't have to devote another motor the cart mechanism.