hosted on condor3913
 Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

End-of-Year Fundraising Drive In Progress. Please visit our home page to see this and other announcements: https://www.mmdigest.com     Thank you. --Jody

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.

Musically,
John A Tuttle
Player-Care.com
Brick, New Jersey, USA

 [   contour of pouch 1
 [ http://www.mmdigest.com/Attachments/18/04/18/180418_050446_contour-1.jpg 
 [   contour of pouch 2
 [ http://www.mmdigest.com/Attachments/18/04/18/180418_050446_contour-2.jpg 
 [   contour of pouch 3
 [ http://www.mmdigest.com/Attachments/18/04/18/180418_050446_contour-3.jpg 
 [   contour of pouch 4
 [ http://www.mmdigest.com/Attachments/18/04/18/180418_050446_contour-4.jpg 

 [ I believe the unsupported portion forms a catenary, the curve of a
 [ hanging chain.  See https://en.wikipedia.org/wiki/Catenary  -- Robbie


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

Key Words in Subject:  Contour, Pouch

Home    Archives    Calendar    Gallery    Store    Links    Info   


Enter text below to search the MMD Website with Google



CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2022 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Pay via PayPal

No PayPal account required

                                     
Translate This Page