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Unread 16-01-2014, 23:08
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DavisDad DavisDad is offline
MechE
AKA: Craig Rochester
FTC #8470 (Team Technado)
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2012
Location: Boston
Posts: 317
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Re: 2073 Pneumatic Catapult

Quote:
Originally Posted by pfreivald View Post
We couldn't get the shot we want out of ours, so we scrapped it and are working on other designs. But thanks so much for sharing the general idea!
Have you tried making or buying a proportional control valve (AKA I/P)? We made one that worked pretty well but was a modified regulator, so illegal. You could turn knob w/ gearmotor & multi-turn POT.

One of the students said today that a "Quick Exhaust Valve" or "Dump Valve" is legal this year. This is a shuttle valve on the exhaust port that charges from solenoid and dumps to atmosphere. Anybody know about this?

Last edited by DavisDad : 16-01-2014 at 23:26. Reason: clarification and addition
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