Quote:
Originally Posted by ksafin
I suggest you put regulator valves on both ends of the pneumatic piston itself and mechanically adjust the amount of air going in.
I don't know of a way to do it via code, but this is the way I think most teams would do it.
Looks like this: http://www.andymark.com/product-p/am-2032.htm
The dial lets you adjust the speed of air coming through the valve
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You want to put that valve on the exhaust side of the air cylinder. By doing that you can apply full pressure to utilize the power of the piston and the "cushion valve" controls the speed the piston moves by controlling back pressure. Also, that valve only restricts air flow in 1 direction so when the solenoid reverses the cylinder will retract at full speed.
Also keep in mind that many of the solenoid valves need >35PSI supply to operate. If you reduce the air pressure before the solenoid valve, it may not switch states when commanded.