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your driver must be pretty skilled or your code's gonna be really good; to use that thing to give small pushes to the arm might prove difficult... especially if its at equilibrium. nice design though!
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It's actually got a potentiometer mounted on the far side of the shaft. The programmers are going to have 3-4 different height positions for us to use. We actually were able to give them the robot for a few days a full 2 weeks before we ship, a fairly amazing feat for us, and they've been able to do quite a bit with that time.
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What happens if the arm gets hit from the side? Isn't that gonna put a lot of force on that little joint? You might bend the bearbox's output shaft.
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Yeah we're a little concerned about that, more concerned about damaging the potentiometer on the other side though. We're talking about putting some protection on it, but nothing's been quite decided yet.