Laminated soundboards

[Marcel Carey]

Now what if the lamination of the board was done in a curved caul?
If the panel was laminated crowned, wouldn't that induce extra
stiffness? Then maybe it could be made thinner a little, getting to be
more responsive and stiffer at the same time. Does anyone know if this
was ever tried?

Marcel Carey, RPT
Sherbrooke, QC

> -----Original Message-----
> From: owner-pianotech@ptg.org
> [mailto:owner-pianotech@ptg.org]On Behalf
> Of Phillip Ford
> Sent: 11 juillet, 2002 12:48
> To: pianotech
> Subject: Re: Laminated soundboards
>
>
>
> >>I recently went to a presentation about Fazioli pianos.
> The presenters
>
> >>
>
> >>were not Fazioli employees.  If I understood what I was
> looking at, then it
>
> >>
>
> >>seems that Fazioli is using laminations at the top end of
> his soundboard,
>
> >>
>
> >>say from the last rib or next to last rib up to the top.
> The presenters
>
> >>
>
> >>were not sure.  Do others out there know anything about this?
>
> >>
>
> >>
>
> >>
>
> >>Phil Ford
>
> >
>
> >
>
> >They are. There's a cross ply lamination in that treble
> corner. I assume
>
> >it's intended as a stiffener, but it also adds some
> (minimal) mass. Now,
>
> >for the new car and a date with Vanna, which will have the
> most affect up
>
> >there?
>
> >
>
> >Ron N
>
>
>
> I think I need to buy a vowel.  Why the additional mass?  From the
>
> glue?  I'm thinking the effect of the stiffness will be
> more important that
>
> the effect of the (minimal) mass.  Do I get the car?
>
>
>
> Phil F
>
>
>
>
>
>
>
> Phillip Ford
> Piano Service & Restoration
> 1777 Yosemite Ave - 215
> San Francisco, CA  94124
>