pic: arm design

[M. Hicken]

looks good. Cant say the drawing is perfect for manufacturing. Just watch how much weight you have and how far out it is. In response to your question: we looked at pneumatics to raise our arm last year, i didnt pan out for us. But its not to say it wont for you. As for the scissor mech, we made one after the competition for kicks, it worked, but broke quickly because of the force needed to get the initial movement from its compact position. There was a team last year who used a large scissor mech. The only problem is that it took just unger 2 min just to get it extended.

HTH

Marcus