[pfreivald]

Originally Posted by Alex.q

Are you suggesting that 3pt centering would be better than using 5 points of contact (belts + 4 pieces of aluminum in a similar set up to this)? if we had 2 belts, should we put them closer toegether to keep the contact close to one point or spread them out (2-4") apart so that the ball isn't affected as much by being slightly misaligned?

Not to sound glib, but this is something you'd probably have to experiment with yourself. This is what we went with: http://www.youtube.com/watch?v=ZTQ-dU96c2A