we used 2 for our ball collector this year... it seemed like a good idea at the time.
What it really amounted to was frustration everytime we took the darn thing apart, and now in the offseason, (probably because we 'over-tweaked' the robot) when we go to give demonstrations, and we pick up balls, the collector actually stops once the ball gets in it

, then the ball slowly crawls up and in. (not saying it will happen to you, but be wary)
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