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Originally Posted by Frank(Aflak)
radio shack is good for pots, but I still say buy some springs (you can get smaller ones from a hardware store).
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So here's what we finally decided we're going to do to the arm the Thursday at the competition.
- Make it lighter (replace the 30 series extruded aluminum with 20 series)
- Use a larger sprocket on the drum (moves slower and more torque)
- Add a potentiometer to measure position of the arm
- Add a tensioner (sp?) for the belt
- Some programming modifications to improve control
We already have full position control of the opening and closing of the arm. We can stop the piston of the cylinder at any position. We should have similar control of the drum of the arm with the modifications.