fingerprints

[Isaac OLEG]

Hello,

Yes Fred, I agree with that (and hence I can shape a set in a very
short time without too much mating after that).

Shaping, then giving back some power, and balance again the tone, is a
too large job if the hammers are to be changed.

If I accept to do that, the repair will not be done. All the good
techs around me say the same, that if they show the customer what they
are able to obtain with their old worn hammers, one year later, the
customer is yet asking you the same work, and takes you for an idiot.

So I try to stand more firm on that actually (and I loose some
customers too)

I loosed some before also by making for them a quick fix, and giving
them the real evaluation of what the piano need. After that they are
afraid to call me back and they prefer to found a less exigent tech.
But I am naive, I remember a despaired customer with a 2.20
Bosendorfer, where the action was so much out of regulation that the
dampers where ringing always.
There she was very friendly, but since I fix that in a pinch, she was
pleased with her piano for another year or more.

In an university, I guess things are different. Of course the main
concern is breaking strings, because of too worn hammers. But why not
begin immediately the repair ? If they can't use the piano, things
will be done soon.

It is not that hard to have the old hammers in their good place, and
even if filed they will have to be there.

Best Regards.

Isaac OLEG





> -----Message d'origine-----
> De : caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]De la part de
> Fred S. Sturm
> Envoye : vendredi 22 novembre 2002 15:28
> A : College and University Technicians
> Objet : Re: fingerprints
>
>
> A couple comments below:
>
> Isaac OLEG wrote:
>
> > Hello,
> >
> > I'd suggest that you don't file the hammers if you feel
> they need to
> > be replaced.
> > Doing that you will be stuck with worn hammers for a longer time ,
> > sell the good job first.
> >
> > If you can't tune because too large groves just break the angles,
> > anyway never file a hammer to the point you don't see the
> old grooves
> > anymore.
> >
> > If you don't mate hammers back to stings after filing you
> will have
> > trouble, so it is not a so simple job.
>
> On the other hand, if you tighten the action screws (or if
> they have been
> tightened before), and the spacing of a few hammers shifts just the
> slightest bit, then you have a horribly uneven sound where,
> say, every
> third hammer is grazing the sides of the grooves. I think I
> prefer filed
> hammers that haven't been mated to the sound of grooves
> that aren't quite
> centered on the strings. And there's also a question of whether the
> hammers are well-centered on the strings (or consistently
> to one side, if
> you perfer). Often neglected pianos will have several
> hammers that miss
> one string entirely, or just barely touch it. A good filing job is a
> prerequisite to lining the hammers up to the strings.
>     Nothing is simple. You need to assess the situation and decide.
>
> > >snip<
> >
> > Isaac OLEG
>
> Regards,
> Fred Sturm
> University of New Mexico
>
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