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Unread 21-03-2014, 00:03
TheHolyHades1 TheHolyHades1 is offline
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Re: Pistons not extending fast enough?

Quote:
Originally Posted by Matt C View Post
This might give you some ideas, and it's the clearest picture I have of our shooter which appears to be similar in geometry to what you are attempting to accomplish. The pistons are 7" stroke, both have a small air tank on the working pressure side attached to each piston. The pistons push just short of over center (they almost line up with the hinge point on the front of the "catapult"). This puts only a slight force on the modified gate latch(not seen on the left side of the picture inside the robot, actuated by a .5" stroke piston which lets go to release the pre-pressurized shooter. The pivot is a pair of door hinges and there is a strap to prevent the pistons from smacking into the end of the cylinders whey they extend.
The gate latch - when your pistons retract, I'm assuming that it locks back into place until the next time you're shooting? Also, do you have the pistons retracting with gravity or some other mechanism, or are you having them retract by sending air in the other side?
 


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