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Re: what motor did you use(arm)
If there is something to be learned here it is that any motor in the kit (even the globe) can be used to power the arm.
I like the philosophy of 330 on arms though; keep them simple, and then gear them down A LOT so that they have so much torque you never have to worry about it. A mentor of theirs, Chris Husmann, gave a great presentation last fall on arms that I would love to get a copy of.
When we had to redo our arm after a regional this year, we took that advice and used a small CIM paired with an AM planetary for each joint (the "team 60" arm).
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