[pianotech] X-Ratcheting Counter Bearing Shim

[Greg Newell]

Did you cut the brass yourself? Bandsaw?

Greg Newell
Greg's Piano Forté
www.gregspianoforte.com
216-226-3791 (office)
216-470-8634 (mobile)


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Jon Page
Sent: Wednesday, April 14, 2010 4:03 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] X-Ratcheting Counter Bearing Shim

Well, it worked. Installing the half-rounds pulled whatever pitted wire away
from the agraffe and it tunes smoothly. Another factor is that it reduced
the drag of all the wire contacting the counter bearing felt.

There is still some wire contacting the felt, enough to mute the segment.

It seems this is a viable work-around for these untunable, ratcheting notes.

I was able to install most of them with the off set screw driver but the
lowest six unison needed to have most of the tension dropped in order to get
the insert under the wire in the tight space between the pin and felt.
-- 

Regards,

Jon Page