[falconmaster]

Originally Posted by GaryVoshol

I assume you're going to have one of these on all 4 sides. How are you going to avoid [inadvertently] POSSESSING more than one ball?

we will only be able to run one roller at a time and we will have ping pong ball with a bright light inside to indicate which roller we have on. If light is on at that side then roller on that side is on, at least thats the plan