pneumatic rules ?

[mcktim]

I need some clarification..

Can you build a launcher with an air chamber and a piston that opens that chamber and still be within the rules? I'm thinking a 4"pvc chamber.

R99> There is no limit to the number of solenoid valves, air cylinders, pressure regulators, and connecting
fittings you may use on your robot. They must, however, be “off the shelf” pneumatic devices rated by their
manufacturers for pressure of at least 125psi. Besides the “free” pneumatic components listed on the
Pneumatic Components Order form, you may purchase additional air cylinders or rotary actuators, however,
they must be identical to those listed on the Pneumatic Components Order form (i.e. same part numbers), and
obtained from a Bimba or Parker Hannifan distributor.