[gurellia53]

Originally Posted by Jared

You don't necessarily have to rotate the joint of the arm to get the arm to rotate. You could use a lead screw/cable to pull/push somewhere on the arm. There a lot less torque involved if you do it this way.

We used a lead screw with a push rod back in '07. We also used gas shocks to offset the weight of the arm. This method was nice because it avoided a large sprocket and chain.