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Unread 23-02-2016, 17:05
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GeeTwo GeeTwo is offline
Technical Director
AKA: Gus Michel II
FRC #3946 (Tiger Robotics)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Slidell, LA
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Re: Pneumatics problems

We had this or a similar issue a few days ago.
Most of the solenoids used in FRC are air-piloted. This means that without air pressure, the valve does not move. We are using the Vex manifold-based solenoids for the first time, and one of our cylinders is single-acting. The port intended for the return stroke was "creatively plugged" in such a fashion that the supply air was vented directly to the atmosphere, apparently dropping the supply pressure at the manifold below the pilot threshold. When they switched to separate solenoids, things worked fine. We are again working with the manifold-mounted solenoids.
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