after ring

[Isaac OLEG]

Hello,

I've been made careful about needling the front side of the shoulders
less than the back, as on forte blow, the front side of the striking
zone and hammer is more solicited because of the flexing of the
shanks.

Too much needling the front mean loosing power at forte level then.

Do you mean that you install a softening zone only near the striking
zone (not deep) ?

I noticed that on grand's voiced with more needling on the front near
the crown, it is not possible to have that crystal ringing quality in
the attack, the tone will stay matte always , even if power is
conserved. Of course if a lot of unwanted noises are present that
should be a better option that muting the capo , but I was told of the
use of little rubber wedges (a few mm tall) to dampen the extra noisy
strings, often because of surface problems in capo or hammer.
Some techs shim a little bushing red felt around the 3 strings, since
they can fix the problem more definitively.
On concert pianos I was told 3 rubber wedges are considered maximum,
after that reshape the strike and level strings. These little black
rubbers are hardly noticed when pushed almost under the capo.

Best wishes to all, I was off for sometime.

Regards.

Isaac OLEG

Entretien et réparation de pianos et pianos de concert.

PianoTech
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> -----Message d'origine-----
> De : caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]De
> la part de Ed
> Sutton
> Envoyé : lundi 13 janvier 2003 18:07
> À : College and University Technicians
> Objet : Re: after ring
>
>
> Hi Roger,
>         Here's the difference: Voicing the front side of
> the hammer dampens
> only the reflected wave going from the hammer back to the
> capo during the
> time of hammer contact.  Once the hammer is off the string,
> the duplex
> operates freely.  Presumably this gives better sustain than
> damping the
> duplex with glue or felt.  You get the power and brightness
> from the hard
> back side of the hammer sending its wave toward the bridge,
> while damping
> some of the impact zing at the capo.  At least that is the
> theory...;)   It
> does make a difference somehow.
>         It should also help with agraffe noise, though I
> haven't tried that
> yet.
>         I got this from the Renner voicing instructuions,
> and also from Bill
> Clayton who learned it from Fred Drasche.
> My approach is pretty finicky: I draw a line across the
> hammers through the
> strike point, then start with shallow needling at the line,
> getting deeper
> toward the shoulder.  5 pokes with a 3 needle tool is
> enough to make a
> change.
>         Ed S.
>
>
>
> ----- Original Message -----
> From: "Roger Jolly" <roger.j@sasktel.net>
> To: "College and University Technicians" <caut@ptg.org>
> Sent: Monday, January 13, 2003 11:11 AM
> Subject: Re: after ring
>
>
> > At 05:30 PM 1/9/2003 -0500, you wrote:
> > >This is a good approach.
> > >Before reshaping the capo, try needling the front side
> of the hammers
> only.
> > >This will often reduce front duplex noise with very
> little loss of power.
> > >EdS
> >
> > Hi Ed,
> >              A dab of white glue applied to the wire of
> the forward
> > terminating, will greatly reduce that noise by de tuning
> the duplex.
> > Just another emergency fix.
> > Regards Roger
> >
> >
> > _______________________________________________
> > caut list info: https://www.moypiano.com/resources/#archives
> >
>
>
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