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MMD > Archives > April 2018 > 2018.04.18 > 03Prev  Next

Contour of a Pouch
By John A. Tuttle

Hi All, I'm starting to have various sizes of vacuum-operated
pouch tools manufactured, but I've run into a bit of a problem.
Specifically, the question is: What's the correct contour of a pouch?

About the only parameter that everyone seems to agree on is that the
depth of the pouch should be 1/8" in the center.  On the other hand,
the shape of the 'dish' seems to vary widely.  I've attached four
pictures/diagrams of pouch tools and it's easy to see the differences.

If there is an optimum contour, how is it defined?  Does it vary from
manufacturer to manufacturer?

I look forward to your opinions.

John A Tuttle
Brick, New Jersey, USA

 [   contour of pouch 1
 [   contour of pouch 2
 [   contour of pouch 3
 [   contour of pouch 4

 [ I believe the unsupported portion forms a catenary, the curve of a
 [ hanging chain.  See  -- Robbie

(Message sent Wed 18 Apr 2018, 12:04:46 GMT, from time zone GMT-0700.)

Key Words in Subject:  Contour, Pouch

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