Dust-free finishing for soundboards.

[Delwin D Fandrich]

Hmm? Was there a message in either of these posts that I've missed. Or are
you learning my tricks?

Del


----- Original Message -----
From: "gordon stelter" <lclgcnp@yahoo.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: March 03, 2003 10:06 AM
Subject: Dust-free finishing for soundboards.


>
> --- Delwin D Fandrich <pianobuilders@olynet.com>
> wrote:
> >
> > ----- Original Message -----
> > From: "gordon stelter" <lclgcnp@yahoo.com>
> > To: "Pianotech" <pianotech@ptg.org>
> > Sent: March 03, 2003 6:26 AM
> > Subject: Re: Drying pinblock before stringing-slight
> > clarification.
> >
> >
> > > I still disagree, Ken. As I have experienced
> > plenty of
> > > pianos develop looser pins in winter, when the
> > > humidity is low, I believe that this will "open
> > up"
> > > the holes a little prior to stringing, preventing
> > some
> > > fiber tear on pin pounding and then the pin will
> > be a
> > > little tighter when the EMC rises. As I am not
> > going
> > > to test this scientifically, and as  I am a
> > neurotic
> > > compulsive perfectionist with a "better safe than
> > > sorry"-"do my very best for the customer" complex,
> > I
> > > will continue this practice until someone shows me
> > > hard scientific evidence, not just their opinion,
> > that
> > > it is worthless.
> > >      Have a Nice Day!
> > >      Thump
> >
> > Well, it is a fairly well researched and documented
> > fact that a hole of
> > given size in a piece of wood expands and contracts
> > along with the expansion
> > and contraction of the wood. This is Basic Wood
> > Technology 101. Check R.
> > Bruce Hoadley's 'Understanding Wood' for details.
> >
> > So, since the change in tuning pin torque you are
> > finding is also real and
> > well documented, there must be some other mechanism
> > at work here.
> >
> > Since this subject comes up from time to time there
> > is an accumulated (and
> > accumulating) amount of information in the archives.
> > One I have brought up
> > in the past (others as well, I expect) is that the
> > coefficient of friction
> > between the metal pin and the wood surface changes
> > as the moisture content
> > of the wood changes. It decreases as the moisture
> > content goes down and
> > increases as the moisture content goes up. I've no
> > idea if this change is
> > enough to account for the variation in tuning pin
> > torque felt in some pianos
> > but, if it were a question I was interested in
> > enough to do some research
> > answering, this is where I'd start....
> >
> > Del
> >
> >
> > _______________________________________________
> > pianotech list info:
> https://www.moypiano.com/resources/#archives
>
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Tax Center - forms, calculators, tips, more
> http://taxes.yahoo.com/
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives