Bearing difference on different soundboards

[Isaac OLEG]

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Hello,

I understand recently that we probably don't have to apply down bearing the
same way on a rib crowned soundboard and on a "compression crowned" board,
as the last one will do it's best under a light load, while the crowned rib
bar ask for the down bearing to give them some more internal tension.

That makes a big difference in approach I guess.

A friend of mine use to fine regulate down bearing pressure with the
string's rest height while stringing, checking with the strings at pitch as
he goes.

Do some of you apply this method ?


Isaac OLEG

Entretien et reparation de pianos.

PianoTech
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94400 VITRY sur SEINE
FRANCE
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  -----Message d'origine-----
  De : caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]De la part de
BobDavis88@aol.com
  Envoye : dimanche 2 fevrier 2003 10:07
  A : caut@ptg.org
  Objet : Re: shell-shock


  Susan writes (Greetings, Susan):


    I sometimes voice with shellac now (ultrablonde, pretty dilute),
    and it leaves just a little color. I wonder if that would make it easier
to
    tell where it was going, when putting it in from the side?
    ... I wonder  if anyone else has used it for initial juicing?



  Yes, Steinway used it for about fifty years. I don't have anything against
it except the slow dry time of the alcohols, which isn't a problem on
shallow juicing, but there are situations where the heavier modern NY
Steinway hammer needs the additional stiffness of a very deep shot or even
two, like in a large dead hall where the artist wants a very aggressive
sound at the high end of the dynamic range. Yes, there are other ways to
design a piano, but that particular implementation requires juice, maybe
multiple applications, and that is also why I don't care for the blocking
effect of keytop plastic.

  The color might help a little, but I don't think so. You can see the wet
spot from clear stuff on the side, but that still doesn't help tell how deep
and what direction it's traveling. If you feed just a little fast, you get a
big wet spot that doesn't allow you to tell anything else.

  Bob Davis

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