Bridge pin spacing (was Baldwin SD-10)

[Tom Servinsky]

Newton, Del, Ron O, Ron N and other scholars out there,
This might seem like an over-simplified question, but what factors in
scaling determines the optimum width of a bridge and the facing in the first
place? I have  always pondered the reasoning behind the broad width bridges
vs. some of the extremely  narrow bridges found in all types of pianos.
 Having rebuilt oodles of instruments, the good, bad, and the ugly, I have
yet come to a conclusion as the "why's" vs. the "how effectives" are each
design.
Tom Servinsky,RPT
----- Original Message -----
From: "Newton Hunt" <nhunt@optonline.net>
To: <pianotech@ptg.org>
Sent: Friday, September 07, 2001 3:07 PM
Subject: Re: Bridge pin spacing (was Baldwin SD-10)


> One limiting factor in bridge width and pinning is the pins go in at an
angle
> and will, as some point, meet, front and back.  Width then is a function
of
> those angles.
>
> Pin angling is generally a compound angle, Left or right and front to
back.
>
> The reason for this is that the vertical and horizontal terminus must be
on the
> same vertical plane, notch and pin contact points.  Some do it, some
don't.
>
> Newton