wood - was: removing key pins

[Farrell]

I think this is because the quick steaming process only affects a thin layer of wood right next to the hole. These cells swell up and shrink, making the hole smaller.

Terry Farrell
  
----- Original Message ----- 
From: "David Love" <davidlovepianos@earthlink.net>
To: <pianotech@ptg.org>
Sent: Saturday, September 07, 2002 7:14 PM
Subject: Re: wood - was: removing key pins


> It's pretty easy to see that this is not the case.  If you have pulley keys
> the first thing to try is steaming the balance rail hole which will swell
> the wood and tighten them.  After the wood dries the holes will still be
> tight and you will have to ease them somewhat.  This happens inadvertently
> when removing key bushings often.  Before cutting kerfs and inserting wood,
> I would try steaming them.  It doesn't take much.
> 
> David Love
> 
> 
> 
> 
> 
> > "Holes in wood get smaller as humidity goes down..."
> >
> > I have heard this before. Believe me, I am not trying to start an
> arguement - just trying to understand. If a hole gets smaller, then why do
> tuning pins get more loose with lower humidity?
> >
> > Terry Farrell
> 
>