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Unread 13-05-2011, 10:57
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Re: Slowing down the action of a cylinder with flow control, mechanical or via softwa

Another strictly mechanical option (though possibly not the most elegant) would be to add an accumulator tank to your exhaust and then put one of the flow control fittings on the other end of the tank.
What this would do is allow for quick initial exhaust (nearly the same speed as if you vented directly to atmosphere) as the tank is filled but as pressure builds up in the accumulator (since the outlet is restricted) the exhaust will be slowed, meaning your end of stroke should move slower, essentially the same as if you just put the flow control fitting directly on the exhaust port.

The effectiveness would vary depending on the size of your cylinder and accumulator. If your accumulator is too large, it will have almost no effect, if it's too small, you'll slow down very quickly.