Soundboard Press

[Farrell]

Glad you are warm again. "It's always sumpthin."  Did you repair with
plexiglas........not that there is any chance it would happen again?

> I also don't use any sort of mounting frame for the
> clamps, but just let them go where the board takes them when the pressure
> is applied.

I take it you are referring to the big two-tier triangular wheeled cart he
uses? If that is accurate, your clamps are not tri-level like his, but
rather only have two beams - you set the lower beam (that has a bit of
radius cut into it???) down on a flat table or whatever, set your board
up-side-down atop that, and then apply glue and your rib, and then set the
upper beam with the hose on top of the rib and attach the top beam to the
lower beam and inflate?????? How do you keep the rib from squirming around??
Simple sure sounds good to me! Also, I only have 1,000 squre feet in my
shop, and the last thing I need is another cart that does not do anything
most of the year! Thanks for the info.

Terry Farrell

----- Original Message -----
From: "Ron Nossaman" <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: Monday, January 21, 2002 11:35 PM
Subject: Re: Soundboard Press


> >Thank you Ron N. for the reference to the Clair Davies soundboard press
> >article. Looks like a good system. You mentioned that your gizmo differs
a
> >bit from that in the article. What are the major differences between his
and
> >yours?
>
> Hi Terry,
> Sorry, been busy the last day or so. The neighbors had company Sunday
> afternoon, and the kids that were banished to the front porch to fend for
> themselves spontaneously decided it would be fun to break 20 window panes
> in our house while we were gone. As of about 6:00 pm this evening, we're
> weather tight again. I hope they are as glad as I am that I didn't catch
> them in the act. They are alive, and I am not incarcerated.
>
> Our world's future...
>
>
> The major difference is that I built mine of maple rather than yellow
pine,
> and cut reasonably accurate radii in the cauls rather than making them
> straight and relying on whatever flex in the caul the hose air pressure
> supplied for crown. I also don't use any sort of mounting frame for the
> clamps, but just let them go where the board takes them when the pressure
> is applied. No problems.
>
>
> >How about the Davies pheumatic bridge-to-soundboard press? Looks like
> >another good system. Waddayha think of it? I like the way that he gets
equal
> >pressure to all areas - between ribs, etc. - of this joint. Seems pretty
> >slick. Comments? Has anyone built anything like this? How does anyone
else
> >apply pressure to this joint?
> >
> >Terry Farrell
>
> I see no reason whatsoever for the rib press. I attach mine with Titebond
> and sheet rock screws, centered between ribs, with soundboard buttons. No
> other clamps. Functionally, this is about as low criticality a glue joint
> as you will encounter in anything you will ever build if you prove to be
> immortal. A bridge press is massive overkill in my opinion.
>
>
> Ron N