[pianotech] Downbearing

[David Love]

FWIW Since I've been taking off bridge caps in one piece I've noticed that
(at least on Steinways) the bridge cap is almost always thicker in the front
by about 1 mm than in the back.  That's with the bridge body being equal
height front to back which suggests that someone was targeting erring on the
side of positive front bearing even if front and back were not equal.  That
would also agree with pre teardown measurements.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Sunday, November 23, 2008 8:39 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Downbearing


> While equal front/back bearing is a good goal, I'd say more important is
> that the front has positive bearing.  A slight favoring of the front of
the
> bridge as a hedge against ending up with a back positive and front
negative
> is, in my view, the prudent approach.  
> 
> David Love

Definitely.
Ron N