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Unread 19-02-2007, 09:01
Ben Piecuch Ben Piecuch is offline
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Re: Suction cup efficacy; and how to improve it.

We prototyped with the suction cup for days, and were really impressed with its performance. However, it just didn't fit with our grabber design, so we abondoned it. Our experience is as follows:

- Keep the tubing length between the venturi and the suction cup to a minimum.
- Turn down the pressure on the vaccuum loop to 26-32psi. This is the optimal pressure for the venturi (says so in the documentation.)
- Run 1/4" tubing up to the venturi, but only 1/8" tubing downstream of it, between the venturi and the cup.
- Keep the suction cup clean. You can wipe it with a wet rag or baby wipes when it gets dirty.

Good luck.

BEN