Quote:
Originally Posted by neoshaakti
oh man that catapult is BEAST
what did you use to power the catapult?
I cant really tell, but is ure robot within the 28 by 38 requirement ?
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I wasn't working on that component, but I think we have 2 2" bore 10" stroke pneumatic pistons. We did a 'trick' (well known, I think) by keeping the cylinder from moving at 60psi with 3in. filled. Then we release the ball, and the air stored in the 1/3rd of the cylinder expands very quickly, giving us enough force to launch the ball.
Right now we're working on lowering the air consumption (right now a single shot drops our pressure from 115psi to about 80psi...)
And yes, I believe it is within the limits... However, this is a culmination of 2 prototypes, a mechanism mounting bracket, and last year's robot. The real thing will (hopefully) be much nicer