Jay Pique wrote:
On Jun 8, 8:29 pm, Morris Dovey wrote:
Jay Pique wrote:
And, for those who think it ridiculous to go through the trouble of
obtaining a CNC'd template to make a clamping caul.....you're probably
right! To me a fair curve seems like it should apply more even
pressure across the width of the panel, so that's why I wanted it.
Thanks, Morris!
I'm glad they did the job. The nice part about having a good template is
that it can be used over and over.

Afterward I wondered if a catenary with that same 1/8" chord height
might apply more even pressure...

Hmmm...that's a question for the engineeers, but I like the way you
think. Is that sort of formula easily input into your CNC language?

It's not difficult, but I usually write a simple C language program to
write the bulk of a part program - so as to take advantage of the
increased precision available.

The mathematical description (actually, several of 'em) can be seen at

http://www.answers.com/topic/catenary

I'm not sure the difference in behaviors of arc and catenary would be
significant, tho.

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/