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#1
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Piston Question
Does anyone know if it's allowed for our robot run an input/output pneumatic piston with only ONE hose on the piston (e.g-a piston with only an input hose or an output hose; the other would just be open).
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#2
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Re: Piston Question
Why would you want to do that?
The rules don't specify that each piston has to have both ends connected, but I don't see a reason to have a 1-way piston, other than that something else would be pulling it back or it's a 1-shot application. |
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#3
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Re: Piston Question
My team tried that, but it seemed air escaped, although for the life of me I don't know why. This is second hand, though. Feel free to pull out a hose and try it - it won't break anything.
As long as you unplug the hose when there's no pressure. |
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#4
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Re: Piston Question
Quote:
If air is actually constantly leaking out of the open piston port I believe that the piston is broken as that sounds like a bad internal seal. Regarding the original question, this is perfectly legal: http://forums.usfirst.org/showthread.php?t=14218 Eric, it is often desirable to simply vent one port of a cylinder if it will already be returned by other means in order to save air. Our 2008 robot vented the retract port of our arm raising cylinder through a flow control valve and let gravity bring it down. |
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#5
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Re: Piston Question
It is perfectly fine to run a cylinder this way and I will wager you will see a lot of it this year.
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#6
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Re: Piston Question
Because a pre-charged piston moves MUCH faster if it doesn't have to push a lot of air through a small exhaust hole. You can make an impressive kicker this way. http://www.chiefdelphi.com/forums/showpost.php?p=910176 ~ |
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