[CAUT] sizing key-frame pin holes?

[Ed Sutton]

Thanks, Fred!
I like your comparison to hearing a unison go out in concert.
I get the feeling.  I'll add some CA.
Ed S


> [Original Message]
> From: Fred Sturm <fssturm@unm.edu>
> To: College and University Technicians <caut@ptg.org>
> Date: 9/1/2004 8:55:36 PM
> Subject: RE: [CAUT] sizing key-frame pin holes?
>
> --On Wednesday, September 1, 2004 8:36 AM -0400 Ed Sutton 
> <ed440@mindspring.com> wrote:
>
> >
> > As long as we are worried about this, I'd like to ask: How tight does
the
> > pin really need to be?  Last night I pulled a set of keys for rebushing.
> > The pins were not very tight in the key frame; finger-tight with
> > discomfort.  They had been turned to tighten loose key bushings, and had
> > stayed turned for at least 20 years of light playing.  Set straight with
> > new bushings, there will be no twisting force on them.  Has anyone ever
> > had a problem with keypins coming loose while playing?  Ed S.
> >
> 	Yep, several times. Not usually coming out all the way (though that 
> happened once), but often turning to bind the key. And that happened a 
> couple times when I had replaced the pins, so it stuck with me real well 
> <g>. Kind of like listening to a unison go while listening to a concert. 
> Not that FR pins need to be tremendously tight, but if you have any
chance 
> of being able to tuen them or pull them out with your fingers, they've
got 
> to be tighter. CA, or for lack of it aliphatic (thinned or not) works
just 
> fine. Aliphatic resin won't really bind to a pin very tightly either.
> Regards,
> Fred Sturm
> University of New Mexico
>
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