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It shouldn't take that much pressure to make a suction cup go down. It all depends on the material of the cup itself. I would think a normal automotive suction cup from msc would be the way to go. Those don't look like they were designed to be used by a vacuum pump. Plus if what I'm guessing is true these suction cups can have 170pounds of suction.
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If either a public officer or any one else saw a person attempting to cross a bridge which had been ascertained to be unsafe, and there were no time to warn him of his danger, they might seize him and turn him back without any real infringement of his liberty; for liberty consists in doing what one desires, and he does not desire to fall into the river. -Mill
Last edited by Adam Y. : 09-01-2003 at 17:30.
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