Quote:
Originally Posted by 1075guy
Interesting note: Does <R74> as written outlaw the design 1075 used in 2004 and 2007 for stopping a pneumatic cylinder mid-stroke?
By passing the exhaust ports of a valve into the P port of another valve, with a looped hose connecting A and B, plugging EA. This seems like TWO valves controlling the flow through that ONE cylinder, though only ONE valve is DIRECTLY connected to the cylinder.
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No clue if it's just a negative externality of the pneumatics rules this year, but position control with multiple solenoids or even a single 3 position, normally closed solenoid seems to have been outlawed.
Check the official Q&A... our team asked about what you're describing as did a few others and the answers point to a violation of <R74>.
It goes to show how a FIRST team is not one person but a complex codependence of people who are all striving to meet the same goal. - Bill_Hancoc [more] 
16-02-2011, 15:02
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