Soundboard tension & compression

[Delwin D Fandrich]

----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: November 25, 2002 2:29 PM
Subject: Re: Soundboard tension & compression


> So...
>
> WHAT IF ??... you took a panel at 12 % MC and secured its
> cross grain edges so they couldnt budge... and then dried it
> out to 4% MC.... and proceed back down that bunny trail ?...
> just for edification mind you :)
>
> Cheers
>
> RicB
>


You figure it out. It will assist in the edification process and the numbers
are readily available. The amount of wood fiber shrinkage that would take
place, the relative weakness of spruce/pine under tension cross-grain, etc.
Wood Technology 101.

Del