center pinning question

[Allen Wright]

Dale,

No, it's Hamburg.

Allen
On May 15, 2008, at 2:00 AM, erwinspiano at aol.com wrote:

>    Hi Allen
>   first things first.
>   IS it an American Stwy?  If so factor in the vertigris  
> equation.......if not .....nevermind.
>   Dale
>
>
> -----Original Message-----
> From: Allen Wright <akwright at btopenworld.com>
> To: Pianotech List <pianotech at ptg.org>
> Sent: Wed, 14 May 2008 4:27 pm
> Subject: center pinning question
>
> In repinning an old (1930's) Steinway M, quite a few were loose. I  
> found that replacing the old pins with the exact same size (but  
> new) pins was producing just the amount of friction needed - and  
> even in some cases adding too much, so that I had to ream with my  
> "Mannino" burnishing files. Any theories on how that happens?  
> Something to do with the nap of the cloth changing in the process,  
> or perhaps the angle of the pin changing in the bushing, or (even  
> more unlikely) that somehow only the outer edges of the pin are  
> slightly worn on the old pins? (These are the various ideas me and  
> my colleagues were coming up with to explain the phenomenon).
>
> Thanks, and I'll take my answer off the air...   : )
>
> Respectfully,
>
> Allen Wright. RPT
>
> =
> Plan your next roadtrip with MapQuest.com: America's #1 Mapping Site.

Allen Wright
London, UK

http://www.broadjam.com/akwright




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