Drying pinblock before stringing

[David Love]

It's a demon haunted world.

David Love
davidlovepianos@earthlink.net


> [Original Message]
> From: Ron Nossaman <RNossaman@cox.net>
> To: Pianotech <pianotech@ptg.org>; <davidlovepianos@earthlink.net>
> Date: 2/28/2003 8:41:39 PM
> Subject: Re: Drying pinblock before stringing
>
>
> >Let me understand this.  You have a piece of wood with a hole drilled in
> >the middle.  You saturate it with water and the wood expands away from
the
> >hole and the hole gets larger.  Now lets drill five holes in a close
> >pattern.  Saturate the wood with water.  Now the wood expands away from
the
> >hole, except when expanding away from the hole directs the expansion
toward
> >another hole.  The expansion stops short of the adjacent hole and
reverses
> >direction in order that that hole will also get larger.  Doesn't make
> >sense.
> >
> >David Love
>
> No, it doesn't make sense, because that's not how it works. The hole(s) 
> will act similarly whether there is only one, or a hundred of them in the 
> piece of wood. If you saturate the entire piece of wood, all the holes
will 
> expand  in a similar way. If you steam just one hole in the middle of a
dry 
> piece of wood, that hole will get smaller because the rest of the wood 
> hasn't gotten wet, and doesn't change dimension. The expanding steamed
wood 
> around the hole has to go somewhere, so it goes in the direction of least 
> resistance.
>
> Incidentally, the wood doesn't expand away from the hole. The wood just 
> expands and the hole goes along with it. The wood defines the hole.
>
> Ron N