Dowelling bridges to board.

[Farrell]

The few "rolled bridges" I have seen have taken the soundboard with them - or they followed the soundboard. Wouldn't matter how many dowel you stuck through there - everything warped as one big unit.

Terry Farrell
  
----- Original Message ----- 
From: "gordon stelter" <lclgcnp@yahoo.com>
To: <oleg-i@wanadoo.fr>; "Pianotech" <pianotech@ptg.org>
Sent: Saturday, March 08, 2003 9:01 AM
Subject: Dowelling bridges to board.


> It seems to me that if keeping the bridge from
> "pulling over" was desired, a dowel through the
> bridge, board, and into a big, fat, wooden button,
> perhaps 3/4" tall and at least in dameter as the
> bridge is wide, would work best. But would this
> perceptibly augment notes in the vicinity of the
> assembly?
>      Just some thoughts.
> > >
> > > Regarding the positioning of the sound board
> > buttons, I
> > > would concur
> > > with Ron N. and Del. It is much better to position
> > sound board
> > > buttons between ribs and not to screw or dowel
> > into the rib. I have
> > > wondered whether it would be better to replace the
> > button
> > > screws with
> > > maple dowels after the bridge/panel joint has
> > cured. It
> > > might help to
> > > prevent the tendency of the bridge to pull over. I
> > noticed that
> > > Fazioli was doweling the bridges through into the
> > ribs in 1994,
> > > however I don't know if it remains their practice
> > today.
> > >
> > > Ron O.
> > > --
> > > _______________________
> > >
> > > OVERS PIANOS - SYDNEY
> > > Grand Piano Manufacturers
> > >
> > > Web: http://overspianos.com.au
> > > mailto:info@overspianos.com.au
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> > >
> > 
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