RC vs CC again

[Richard Brekne]

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Farrell wrote:

> I guess then you would have a laminated rib constructed of two
> laminations with one of the laminations being excessively thick. With
> laminating, you need at least four or five laminations (at least
> relating to the dimensions and materials commonly used in rib/cut-off
> bar/bridge/etc. construction) to get to a state where the laminated
> assembly will not experience significant springback. A two laminate
> assembly might have 40% or 50% springback. In your case below, you
> would have one laminate trying to spring back and the machined one
> trying to stay in an arc. I think you'd end up with an unpredictable
> mess! Is it like late at night or something over there? Go to bed -
> tomorrow will be a better day! Terry Farrell
>
> Grin... no.. not late at nite.. early in the morning :) hehe... You
> know me Terry.. I like to throw these things out there to see what
> comes back. Some people think, some people try, some get a chuckle and
> some get mad.. but you never know when a good tidbit of thought comes
> along. Besides.. its entertaining... at least for me.
>
> Cheers and have a nice weekend one and all
>
> RicB
>
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>      ----- Original Message -----
>      From: Richard Brekne
>      To: Pianotech
>      Sent: Friday, October 03, 2003 4:38 AM
>      Subject: Re: RC vs CC again
>
>
>      Don wrote:
>
>     > Hi Ric,
>     >
>     > Increasing the height of the ribs on a true C.C. board
>     > would seem to me to
>     > increase the stress on the board--not reduce it.
>     >
>     >
>
>
>      Dont remember suggesting it would reduce stress on the
>      board... but I did understand Dels point.
>
>      But here's a thought down the bunny path to think about...
>
>      Say you have a pure CC panel already assembled and
>      crowned... and THEN you decide to increase rib height.....
>      and you use machine crowned ribs that match the already
>      existing crown to glue on the the undeside of the existing
>      ribs.
>
>      Whats the point ??... just musing... :)... for now that is.
>
>      Cheers
>      RicB
>      --
>      Richard Brekne
>      RPT, N.P.T.F.
>      UiB, Bergen, Norway
>      mailto:rbrekne@broadpark.no
>      http://home.broadpark.no/~rbrekne/ricmain.html
>      http://www.hf.uib.no/grieg/personer/cv_RB.html
>
>
--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html
http://www.hf.uib.no/grieg/personer/cv_RB.html


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