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Hi David,<br>
The impression I got from him, is that he is using a blend of radius rib
and some compression.<br>
there is doubt that his boards work, and work well.<br><br>
Roger<br><br>
<br><br>
At 08:52 PM 3/10/2003 -0800, you wrote:<br>
<blockquote type=cite class=cite cite>My sense is that Bolduc builds
boards to match in terms of fit, but that he<br>
has his own philosophy about how the boards are crowned to produce
optimum<br>
tone. <br><br>
David Love<br>
davidlovepianos@earthlink.net<br><br>
<br>
> [Original Message]<br>
> From: Farrell <mfarrel2@tampabay.rr.com><br>
> To: Pianotech <pianotech@ptg.org><br>
> Date: 3/10/2003 8:32:03 PM<br>
> Subject: Re: compression vs rib crowning<br>
><br>
> So are you saying that Andre builds his boards just like Steinway?
And<br>
what does he do when he gets an order for an 1892 Knabe soundboard, or
an<br>
A. B. Chase, or a Chickering, a Mason & Hamlin, a Decker Bros., etc.
Does<br>
everyone make soundboards exactly the same? How does he know what
the<br>
radius cut into each rib was originally? Or the MC at the time of
rib/panel<br>
glue-up? I'm not picking on Andre, but anyone that "duplicates"
old<br>
soundboards. I say you can't do it unless you know exactly what the
radius<br>
of each rib was, the radius of any mold used during rib/panel glue-up,
and<br>
the MC of the panel at rib/panel glue-up. Perhaps for Steinway, one
can<br>
duplicate a board as this stuff I think is known. But I really don't
think<br>
any of that is known about piano companies that went out of business
100<br>
years ago.<br>
><br>
> So. How does Andre Bolduc or anyone else "duplicate" those
boards? I say<br>
that they redesign them while keeping the appearance of the
originals.<br>
><br>
> Terry Farrell<br>
> <br>
> ----- Original Message ----- <br>
> From: "Don" <pianotuna@accesscomm.ca><br>
> To: <davidlovepianos@earthlink.net>; "Pianotech"
<pianotech@ptg.org><br>
> Sent: Monday, March 10, 2003 10:15 PM<br>
> Subject: Re: compression vs rib crowning<br>
><br>
><br>
> > Hi David,<br>
> > <br>
> > I can't speak for most of them--but Andre Bolduc feels very
strongly<br>
that a<br>
> > duplicate board is *just that*. If you wish to redesign and
send him<br>
> > "specs" I'm sure he would be pleased to make a rib
crowned board for<br>
> > you--or if the piano had such a board in the first place he
would<br>
"dupe" it.<br>
> > <br>
> > At 05:14 PM 3/10/2003 -0800, you wrote:<br>
> > >Why is it that those who make soundboards (duplicate
readymades for<br>
> > >installation) don't make rib crowned boards? Or do
they? The ones I<br>
know<br>
> > >of seem to only make compression boards.<br>
> > ><br>
> > >David Love<br>
> > >davidlovepianos@earthlink.net<br>
> > ><br>
> > ><br>
> > >> [Original Message]<br>
> > >> From: Ron Nossaman <RNossaman@cox.net><br>
> > >> To: Pianotech <pianotech@ptg.org>;
<davidlovepianos@earthlink.net><br>
> > >> Date: 3/10/2003 4:54:11 PM<br>
> > >> Subject: Re: compression vs rib crowning<br>
> > >><br>
> > >><br>
> > >> >Is the difference between rib and compression
crowning one of tone<br>
or <br>
> > >> >longevity (or both).<br>
> > >> ><br>
> > >> >David Love<br>
> > >><br>
> > >> Longevity, predictability, control. All in favor of
rib crowning.<br>
> > >><br>
> > >> Ron N<br>
> > ><br>
> > ><br>
> > ><br>
> > >_______________________________________________<br>
> > >pianotech list info:
<a href="https://www.moypiano.com/resources/#archives" eudora="autourl">https://www.moypiano.com/resources/#archives</a><br>
> > ><br>
> > ><br>
> > <br>
> > Regards,<br>
> > Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.<br>
> > <br>
> >
<a href="mailto:pianotuna@accesscomm.ca" eudora="autourl">mailto:pianotuna@accesscomm.ca</a><br>
> >
<a href="http://us.geocities.com/drpt1948/" eudora="autourl">http://us.geocities.com/drpt1948/</a><br>
> > <br>
> > 3004 Grant Rd.<br>
> > REGINA, SK<br>
> > S4S 5G7<br>
> > 306-352-3620 or 1-888-29t-uner<br>
> > _______________________________________________<br>
> > pianotech list info:
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> _______________________________________________<br>
> pianotech list info:
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<br><br>
_______________________________________________<br>
pianotech list info:
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