Pinblock Wood Expansion

[invader@northlink.com]

>  With all due respects, I have always been under the assuption that 
Steinway as well as others, have been pretty crafty at making pianos. With 
this knowledge they still don't install those things in pianos. Am I still 
in the dark ages? I believe in room acclamation.
Dan Schreffler RPT 
Northern AZ University 
I made a car rack for my recumbent bicycle. The front forks mount to a
> bracket that is mounted on a chunk of old upright pinblock. It is the
> kind of pinblock with the three laminations in front and the 1" of
> solid maple in back. I thought it would make a very solid base for the
> bracket - I even put a coat of epoxy on the outside. Well, it does, but
> I have left it on the car for a couple days now and it has been raining
> for two days straight. The thinner laminations have expanded out beyond
> the 1" solid chunk a good 16th or an inch on all sides perpendicular to
> the grain.
> 
> I was amazed when I saw the obvious wood movement. No wonder pianos
> fall apart when exposed to high humidity (or low). Of course, this was
> an extreme exposure. If even 1/10 of this movement were to occur in a
> piano, I would assume glue joints would fail, etc.
> 
> IMHO all pianos should be sold with good humidity control instructions
> (if not equipment). Of course, I am not foolish enough to think that
> will ever happen.
> 
> Terry Farrell
>   
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