Where to notch a bridge, & relative effects ????? ( Advice sought )

[ed440 at mindspring.com]

I suggest you read Bill Spurlock's article on bridge repair in the Bridges and Soundboard Repair Reprint Kit from PTG.
Ed sutton

-----Original Message-----
>From: gordon stelter <lclgcnp at yahoo.com>
>Sent: Sep 7, 2006 1:23 PM
>To: Pianotech List <pianotech at ptg.org>
>Subject: Where to notch a bridge, & relative effects ????? ( Advice sought )
>
>Dear Everyone,
>     I am restoring a  1923 Steinway "M".  I am
>thinking about impregnating the bridge tops with
>either very thin CA ( because it permeates best ) or
>"Epotek 301", because it is also very thin. Then I
>want to "neaten up the notching". Reblitz says to
>notch at halfway across the pin line, but I notice
>that most of the notches here ( particularly in the
>high treble ) are near the back of the pin line. To
>confuse matters, I just tuned a  Baldwin SF 10, and
>the notches were near the FRONT of the pin line! 
>( What's a neurotic-compulsive perfectionist to do ? )
>     As regards the CA idea: CA glue, when cured,and
>especially when soakred into wood,  is murderously
>hard ( try sanding it ) !!!  I suspect it would be the
>best choice to impregnate the wood of the cap, to
>resist compression, AND to transmit vibrations. It is
>not, though, the best to cling to the pin. What I am
>considering: paint clean, sanded tops & notches with
>ultra-thin CA, let soak in and dry. To keep it from
>filling up the bridge pun holes, I'll find something
>of the cxorrect diameter to "plunge" them with, before
>the stuff cures ( not that fast, really, when used in
>quantity ). Then I'll ream the holes with drill bits
>to proper diameter for new bridge pins 
>( what brand/ supplier should I use ? ) fine-sand
>everything again, nice and clean, DAG the top, and Put
>in the new bridge pins with epoxy.
>     I woulkd really appreciate everyones' comments on
>this proposal, and any other pertinent advice you care
>to dispense.
>    Spare me not!!!!
>     Thump 
>
>
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