Results are In! Re: moisture in wool or wood.

[Farrell]

Gee, ya just gotta go and ruin my fun. Your point is well taken, although if
wood cells are expanding in one direction, it is likely that they will be
expanding in other directions - although perhaps at much different rates.
But, yes, I do not know if the hole may have gotten larger in one direction.
I guess I need some micro-calipers. Or maybe I need to bore out a hole so
that a front rail pin just fits into it - then I could evaluate preferred
orientations. Or I could just forget it and go make some money. I think I
hear a set of broken spinet elbows calling me.................

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "Ron Nossaman" <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: Saturday, January 13, 2001 1:48 PM
Subject: Re: Results are In! Re: moisture in wool or wood.


> > My first trial there was to simply see whether a flange hole
> >got bigger or smaller with increased humidity/moisture content. It is
clear
> >to me, contrary to apparent popular belief, that a hole in a flange
> >decreases in diameter with increased humidity/moisture content.
> >
> >Terry Farrell
>
> That's an assumption that's not necessarily supportable by the experiment.
> Did the hole get smaller, or narrower and oval? How can you tell if the
> average diameter of the hole is smaller or larger by testing the fit of a
> round rod? It's the average diameter that has the effect of compressing
the
> bushing cloth against the center pin, not the narrowest spot, which your
> test may be indicating. Since the rest of the hole could still be wider
> than the rod, or not, what has it told us?
>
>
> Ron N
>