case building information request

[Delwin D Fandrich]

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O2bndsky wrote:

> if I understand it correctly piano cases of the grand piano style have a
> curved lamination construction, while such is common knowlage  the "secreats"
> ie thickness of laminate, source of supply for laminate, epoxie to be used
> for best sound board effect are not common knowlage to this Horrologist (clock
> student).
>
>  the 1870's catalog ilistration defines that they is no way that  an unusual
> regulator clock has straight sides == topped off with a 7.75 inch dia.
> semicircle.
>
> any leads to get the reproduction project off to a better start with curvey
> case would be appreated.
> W,H. Rosenberger     O2bndsky@AOL.COM
> -----------------------------------------------------------------

It sounds to me that what you are really after is some general information on how to make a stable bent laminated structure.
It is true that grand piano rims are usually made this way -- well, at least they are these days.

Rather than beginning an in-depth study of grand piano manufacturing, might I suggest a couple of books that might be of more
immediate help:
    1)    Fine WoodWorking On Bending Wood, 1985, The Taunton Press,
ISBN 0-918804-29-9
    2)    Wood Bending Handbook, 1970, Compiled by the Forest Products Research Laboratory, Buckinghamshire, England.
Published in the US by Woodcraft Supply Corp.

There are probably several more recent works on the subject; I'd suggest a visit to a good library and/or a large hardwood
supplier or woodworking supply store. There are also ads for book stores specializing in woodworking books in magazines such
as Fine Woodworking.

Good luck.

Delwin D Fandrich

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