04-06-2008, 19:29
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6th Gear Developer; Mentor
AKA: Blake Ross
no team (6th Gear)
Team Role: Mentor
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Join Date: May 2006
Rookie Year: 2006
Location: Virginia
Posts: 1,936
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Re: How do you control the length a piston will extention/retraction?
Quote:
Originally Posted by grosh
Can we control how far the piston on a pneumatic cylinder extends and contracts? We are using the double solenoid with a dual actuated cylinder. When we turn the relay on the piston extends to its FULL length. We tried turning the relay off before the piston was in it's fully extended position, but it didn't stop. Can you control the length the piston extends with programming?
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If you simply want to shorten its travel so that only goes to a single location - You use something mechanical to stop it when it has gone that far (you put something sturdy enough in front of it...  ).
I'll see if I can dig up a URL to an article I recently read in Machine deisn about the math behind doing this with high precision.
Blake
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Blake Ross, For emailing me, in the verizon.net domain, I am blake
VRC Team Mentor, FTC volunteer, 5th Gear Developer, Husband, Father, Triangle Fraternity Alumnus (ky 76), U Ky BSEE, Tau Beta Pi, Eta Kappa Nu, Kentucky Colonel
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