[Donut]

I don't know about chains, but we know belts work that first (we're using it for direct drive between big CIM motor and a 9" wheel).

I don't know how it will be for this, but through our testing we've discovered we can shoot balls at ~1/2 second intervals and get the same distance. This was with a shooter that didn't have the surface the ball is pushed against completely secured though, so it may be faster once it's completely put together.