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Unread 11-01-2014, 23:30
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Jeffy Jeffy is offline
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AKA: Jeff Gier
FRC #2410 (Metal Mustang Robotics) #159 (Alpine Robotics)
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Re: 1212 pneumatic catapult prototype

Very Nice!

Did you select that starting angle for the cylinder on purpose? It seems like a good way to get around flow restrictions without added mechanisms.

It seems that is is what is happening:
1. The cylinder has a very short lever arm at the starting stage
2. Because of this, pressure must be very high for the cylinder to start moving
3. Once the arm starts moving, the cylinder gains leverage (the lever arm is longer) and moves the ball very quickly.
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Metal Mustang Robotics 2410 (2008-2011)
2008 STL Rookie All-Star
2010 GKC Finalists
2010 OKC Champions
Alpine Robotics 159 (2012-)
2012 CO Finalists

700 miles from home, 2 miles from FRC. Life is good.