Unusual rib structure?

[Farrell]

Yes indeed. The goofy little manual MC gauge I made had two thin laminated ribs on the back. They were feathered in this manner. You could set the panel on the bench with the ribs down - it had a good inch or more of crown. Then press down right in the middle and when you flattened it, the ribs would pretty much touch the table along the full length at the same time - really went flat nice and even. I was impressed.

Terry Farrell
  
----- Original Message ----- 
From: "Ron Nossaman" <RNossaman@cox.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, May 08, 2003 5:18 PM
Subject: Re: Unusual rib structure?


> 
> >Which is why we don't feather ribs that way. Basically, the rib is divided
> >into thirds. Feathering starts about one-third of the way in from each end
> >(depending on the location of the bridge) and is flat, not concave.
> >
> >Del
> 
> 
> Ditto, and when one is loaded on the bench to see how it bends, the curve 
> it takes is nice and uniform across the entire rib.
> 
> Ron N
> 
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