ribs and stuff (was alternatives.)

Delwin D Fandrich pianobuilders@olynet.com
Fri, 04 Dec 1998 18:36:26 -0800



Newton Hunt wrote:

> Not if the end support moves. (soundboard end that is).
>                 Newton
>
> Ron Nossaman wrote:
>
> > Newton,
> >
> > The case has nothing to do with maintaining crown. The ribs maintain the
> > crown, one way or another.

----------------------------------------------

Yup.  Even then.  You can demonstrate this for yourself by taking a pipe clamp
-- the type that turns around so that you can exert force in an outward
direction -- and positioning it so that you can spread the rim apart.  This is
fairly easy to do on pianos using 'select hardwood' rims.  Whatever crown there
was originally in the soundboard stays there.

Del



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