Restoring crown in old soundboards - new cracks

[Isaac OLEG]

Hello Hello, thanks for these infos,

Yes I dry the thing, may be not as long as you but with DC rods too.
(and sometime the board/bridge unglue also) I was basically saying
that every other classic shimming work I see use to open in the dry
season, probably the ones I made 15 years ago also, but the ones I
made since I use a router (4-5 years) and often larger shims, seem to
hold fine , of course I dry the board too, thanks for these methods in
the journal and on the list.

And the glue used ?

Best

Isaac OLEG

Entretien et reparation de pianos.

PianoTech
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> -----Message d'origine-----
> De : Roger Jolly [mailto:roger.j@sasktel.net]
> Envoye : mercredi 16 avril 2003 18:26
> A : oleg-i@wanadoo.fr; Pianotech
> Objet : RE: Restoring crown in old soundboards - new cracks
>
>
>
> >
> >And yes almost all the shims that have been made 10 to 15 years ago
> >are opening again on almost all the instruments I see.
> >
> >best Regards
> >
> >Isaac OLEG
>
> Hi Isaac,
>                 Do you dry down the board and shims just prior to
> installation?  We use two 50Watt damp chaser rods hanging
> about 30cms below
> the board, the pre fitted shims are left on top of the
> board to also dry
> for  3 or4 days,  the piano is draped in moving blankets.
> We clamp the
> shims in position with go bars.
>      Some times we will create another crack with the drying down.
>
> Regards Roger
>
>
>