[CAUT] Wandering Hammers

[Don Mannino]

180 grit open coat is fine.  120 if you want it more coarse.
 
DM

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From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
denisikeler at aol.com
Sent: Friday, July 10, 2009 12:56 PM
To: caut at ptg.org
Subject: Re: [CAUT] Wandering Hammers


Thanks for all the fast replies!

When I tighten the screws tight, they seem very tight.  I'm mean, you
are not able to move the flanges that easily with your hands.  The
hammer rail is wood, how can the screw bottom out? 

The hammer rail bulging makes sense.  That had not occurred to me.  

First I'll try screwing the screw into the rail without the flange to
see if there is a bottoming out issue.  Then I'll remove the sandpaper
and try the 2 strip approach.  What grit would someone suggest?

Thanks again!
Denis


-----Original Message-----
From: Don Mannino <DMannino at kawaius.com>
To: caut at ptg.org
Sent: Fri, Jul 10, 2009 11:11 am
Subject: Re: [CAUT] Wandering Hammers


Denis,
 
Between Jon Page and Marcel Carey I believe you will find the best
answer.  Either the screws are bottoming, or the hammer rail is not flat
on top.  Another washer will fix the screw problem, and using two narrow
strips of paper on the rail instead of one big one will correct for any
bulging of the wood rail.
 
Don Mannino

  _____  

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org
<mailto:caut-bounces at ptg.org?> ] On Behalf Of denisikeler at aol.com
Sent: Friday, July 10, 2009 4:57 AM
To: caut at ptg.org
Subject: [CAUT] Wandering Hammers


List,

At the Flint School Of Performing Arts, I have a Baldwin SD that the
hammer spacing will not stay put.  About 7 years ago I put hammers
shanks and flanges in it.  I used Renner USA shanks and flanges.  The
problem is, no matter how hard you tighten the flange screw, the hammers
eventually move left or right after a few hours of heavy playing.  

Some of my Ideas are:

1. replace the sandpaper on the rest rail with a heavier grit, which
might necessitate a slight let off and drop adjustment.
2. the flanges have that little "notch" in the back, so I thought
installing bridge pins through the notch right into the rest rail.
    I used to have a 9' Bechstein that I took care of that had the same.
3. remove a small amount of wood under the flange, so that tightening
the screw would transfer some of the grip out to each end of the flange.
My least favorite option.

Any of you ever had this problem?  Any help is appreciated.

Denis Ikeler


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