[pianotech] Bore angle

[paulrevenkojones at aol.com]

 1-26: 5 1/2 degrees right
27-33: 9 1/2 left
34-39: 7
40-46: 4 1/2
47-53: 2
54-88: 0

These are factory specs. Adjust accordingly. I always add more angle breaks, about every 3 hammers. Makes smoother transitions.

Paul


 


 

-----Original Message-----
From: Paul Chick <tune4u at fmwildblue.com>
To: Pianotech at Ptg.Org <pianotech at ptg.org>
Sent: Thu, 20 Nov 2008 12:57 pm
Subject: [pianotech] Bore angle






















List members:



 



A 1942 Steinway “ L” action is in the shop for
repairs.  It does not have any hammers.  The short explanation is that
it was under water in a flood about 22 years ago.  The instrument is just
about finished.  So far, I’ve been able to find the answers I need in
my records.  I see know that I need to  record the bore angles I’ve
used.  To be clear, I’m referring to the angle of  the hole
that aligns the hammer (somewhat) to the angle of the strings.



 



This piano has the accelerated action; 26 note bass; 28
notes on the treble bridge through agraffs; the rest under the capo bar. 
I vaguely remember all the bass notes at one angle, and the first note on the
treble bridge is the beginning of a decreasing angle through the middle
(agraff) section that comes to no angle for notes in the capo sections.



 



Thanks to all that reply.



 



Paul C






 

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