Building Bridges and Bending Wood

[Farrell]

Rescaled. Old bridge ain't where it needs to be.

Terry Farrell
  
----- Original Message ----- 
From: "gordon stelter" <lclgcnp@yahoo.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Monday, March 10, 2003 2:14 AM
Subject: Re: Building Bridges and Bending Wood


> Steam wood, bend, let dry, remove, laminate? Or same
> with just heat? Why are you building a new root?
>      Gordon
> 
> --- Farrell <mfarrel2@tampabay.rr.com> wrote:
> > I'm having a bit of a time building my first bridge
> > root. The bridge is for a M&H upright. It is will be
> > made of vertically laminated quarter sawn hard
> > maple. The bridge design requires a fair bit of a
> > double bend where the bridge goes under the plate
> > strut between the treble and tenor sections. The way
> > I have it laid out, the bends have a radius of
> > approximately three-inches. I cut laminations down
> > to 2 mm, and it is still pretty hard to get the
> > curve I want (I am actually crushing the wood trying
> > to bend it). I realize I could ease the bend a bit
> > and simply move the bridge pins so that they lie
> > more towards the bottom of the bridge on the late
> > note of the treble area, and higher on the bridge on
> > the first note of the tenor section. I hate to start
> > over though.
> > 
> > How tight a curve do any of you bridge builders use?
> > How thick are you making your laminations for that
> > radius? Any special tricks you are using to make
> > this all work?
> > 
> > Terry Farrell
> >   
> > _______________________________________________
> > pianotech list info:
> https://www.moypiano.com/resources/#archives
> 
> 
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