[CAUT] F..riction (rep spring)

[Paul T Williams]

I would venture to say the west side of Washington and Oregon.  Temps not 
drastic, and humidity pretty constant.  I never saw the problems there 
that I have here in Nebraska!  Wild swings here both ways and have to 
"guess" a sort of average between the two to get our pianos sort of 
stable. Over there are lots of old, fairly stable old uprights and grands 
that have been there since being shipped around the horn. Ask Del! :>)

Best,

Paul



From:
David Stanwood <stanwood at tiac.net>
To:
caut at ptg.org
Date:
12/01/2010 03:26 PM
Subject:
Re: [CAUT] F..riction (rep spring)



Hi Jim,

Living on and island in the Atlantic poses the opposite challenge...

I wonder who gets the prize for most stable ideal piano climate in the 
world?

David S

>Hi David,
>
>It's so dry here that I have to repin EVERYTHING as standard 
>procedure. I don't think any manufacturer could pin it for our 
>(Utah's) sometimes 10% or less RH. I certainly subscribe to 
>everything you've posted about friction.
>
>Best,
>
>JIm Busby BYU
>
>
>Thanks Don,
>
>I think I speak for a multitude when I say it would be nice not to
>have to repin every set of reps we get!  Do/can manufacturers
>actually know/publish the hammer weight limits associated with their
>spring size/design...!??   I ran into this problem early in the game
>while going down the super light hammer road...  didn't figure out
>the reason until years later.... like last year... when I tried
>regulating a rep with a very heavy spring material made in a rather
>large country to the west of Japan.   Adding two grams to the medium
>hammer weight solved the problem... also replacing with a much
>lighter spring wire worked.
>
>regards,
>
>David S



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