Making bridges

[Farrell]

I hope I can assume you are speaking of the bridge root, and the laminations are vertical. I'm not much for the "circle of sound" theory, but vertical laminating uses less material, easy to get everything nicely quarter sawn, is so easy to do and results in a very strong one-piece structure (no joints waiting to fail). Just seems to me to be easier and better to laminate. I'm laminating mine with West System epoxy - so very easy to do and you don't need any kind of fancy clamping jig and clamping pressure is super-minimal. This method produces a very clean, even curve to the bridge. My next bridge will have a few staggered laminations that will make producing any size dogleg I want very easy with no extra bending in that area.

Pictures available upon request.

Terry Farrell
  
----- Original Message ----- 
From: "David Love" <davidlovepianos@earthlink.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, May 08, 2003 1:29 AM
Subject: Making bridges


> 
> What are the arguments for and against cutting a bridge out of solid stock
> versus making a laminated one.  I know part of the traditional argument is
> the transmission of different frequencies through different hardenesses and
> directions of grain.  It seems that some bridges were made of combinations
> of maple and oak veneer to accommodate this particular need.  Any truth to
> that?   
> 
> David Love
> davidlovepianos@earthlink.net
> 
> 
> 
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