Mulit-postioning with pnuematics this year?

[KenWittlief]

Since we are allowed to use more than what we have been limited to in the past, there is something Ive been wanting to try for a while, maybe this year we can.

Ive always wanted a way to be able to use a pnuematic cylinder with more control than full out or full in.

If we use extra valves on the exhaust side (the ones we dont normally put fittings on) couldnt you pressurize one side and have the cylinder go all the way out, then pressurize the other side, and have the cylinder goto the CENTER position?

if you had a position sensor, and you used the flow restrictors, couldnt you control the amount of air in each side (using more than one valve) to position it anywhere between the two extreems?

Anyone ever play around with this or try it?

any thoughts? seems like it would be perfect for controlling the position of an arm, infinitely variable.