Thread: Next Question - Check Valve
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Unread 23-06-2002, 23:18
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#0047 (ChiefDelphi)
  
Join Date: May 2001
Location: Pontiac, MI
Posts: 21,214
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Don't mess with vacuum!
Posted by Andy Baker at 1/22/2001 1:33 PM EST


Engineer on team #45, TechnoKats, from Kokomo High School and Delphi Automotive Systems.


In Reply to: Re: Pull a vaccuum
Posted by Jim Meyer on 1/22/2001 12:36 PM EST:



: Just curious if any of the suction cup experienced teams have a feel for this or if anyone has done this test yet?

I remember seeing teams grab balls via vacuum in '98. I don't remember seeing anyone do it well.

Team 16 held a 3 point ball in place with a vacuum cup, and that worked pretty well.

There were 5-10 teams who would pull vacuum to pick up a ball and then place it in the middle goal, but they were all slow and the mechanism seemed not easy to control.

My advice to any team attempting to pull vacuum to grab a ball: DON'T DO IT.

There are better ways to grab balls. The fact that FIRST is making it difficult for teams to create vacuum is no mistake, in my opinion.

Do yourselves a favor and don't mess with creating vacuum to grab balls.

The real problem here is letting go of the ball... it's not easy. You gotta have another valve to provide a "puff off" that lets you "let go" of the ball. Even if you have a good "puff off", the dang ball is so big that your seal may still not be broken.

Andy B.


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