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Unread 18-02-2016, 19:45
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Drew Maggio
AKA: Drew Maggio
FRC #2869 (Regal Eagles)
 
Join Date: Mar 2015
Rookie Year: 2015
Location: Bethpage, NY
Posts: 23
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Thumbs up Re: Suction cup for grabbing boulder question

Thanks for the link!
In my experience, pneumatic systems work by pushing air in one direction or another, causing a piston to extend or contract. While you could create a vacuum by using a complicated pneumatic system with multiple pistons, you might be better off finding a vacuum or reversible pump and replacing the motor with something frc legal.

Most pumps for air mattresses have a second hole that will act as a vacuum to aid in deflating the mattress, I'm sure you could figure out some way to replacing the motor inside a cheap one from Walmart(or any other department store)

This thread from 2013 might be of some use: http://www.chiefdelphi.com/forums/sh...d.php?t=110832

Keep me posted on your use of suction cups for this year! We never really considered vacuums, and it seems like a very interesting solution.