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Re: Pneumatic speed
The reason the cylinder is slow is because it is pushing a lot of air through the vent, the fittings, the tubing, and finally the solenoid block (the same is true for the air flowing into the cylinder). So you can increase the psi and the size of the solenoid, but this will always be the main limiting factor.
The solution is to precharge the cylinder before firing it, and only plumb it in the firing direction (leaving the vent wide open). This method requires a locking mechanism (like a gate latch) to hold the cylinder back when precharged, and something to retract the cylinder (like a smaller diameter cylinder that gets out of the way). You can even directly plumb an air tank to the cylinder to decrease the psi drop during extension.
I'm sure you could improve upon this idea, but it's at least a starting point.
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Alumnus FRC 973: 2010, 2011, 2012, 2013
2011 World Championship Winning Alliance Member
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