Soundboard Compression & Cracks

[Delwin D Fandrich]

----- Original Message -----
From: "Farrell" <mfarrel2@tampabay.rr.com>
To: <pianotech@ptg.org>
Sent: June 10, 2001 7:11 PM
Subject: Re: Soundboard Compression & Cracks


> Del wrote:
> > ....Compression-set in wood is not a uniform thing. It
> > occurs first and most in the late-wood portion of the annual ring. So
> there
> > will be more compression set in an individual board having a higher
> > percentage of late-wood.
>
> Why would late wood be more subject to compression set that early? Late
wood
> is more dense, hence stronger. I would think the early, less dense wood
> would compress more. Is it that the late wood, being more dense, does not
> "bounce back" (bad phrase, but I mean that late wood is not as resilient)
as
> well as the early wood?
>
> Terry Farrell
---------------------------------------------------------

Did I say that? Thanks for catching it--of course compression-set occurs
much more in the softer early-wood.

-- ddf