capo buzz

[Lance Lafargue]

Thanks.  I have the McMorrow book and I've studied it.  It basically
says to file a definite V with the contact point narrowing to a .5mm
width.  This seems that it would add to string breakage, but otherwise
makes sense.  I do plan to confirm the job is approved and that I will
be paid for my efforts.  McMorrow claims (back in 1980(?)s) to have done
200+ of these and the problem is permanently fixed. 

What you claim about the casting flaring to join the strut explains why
those first notes are always the hardest to correct.  I've been
struggling with this for years and I hope I am closing in.  Smoothing to
a smoother U shape does not permanently correct the problem (in my
experience). Anyone have any experience doing this V-Bar shaping to a
V????? (not just smoothing with sandpaper to a smooth U)  

Lance Lafargue, RPT
LAFARGUE PIANOS
New Orleans Chapter, PTG
985.72P.IANO
lancelafargue@bellsouth.net


-----Original Message-----
From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of
Ron Koval
Sent: Thursday, October 16, 2003 8:33 AM
To: caut@ptg.org
Subject: capo buzz

Hi Lance,

Just pulling the strings up to pitch will make a groove.  Then, if there
is 
any spacing that is done, that makes more marks.  Add rubbing the
strings to 
try to remove string bends, and the capo can get marked up pretty
quickly, 
even on a new instrument.  Also, if you are having problems close to a 
strut, many times the capo is too wide in that area as the casting
flares 
out to join the strut.  Make sure when you are done reshaping and
dressing 
the area, that you space the strings as you pull up to pitch, not after.

See if braiding something works first, then make sure someone will pay
for 
all the capo work before digging into this!

Ron Koval
Concordia U.

  I am told that the main problem lies in the V bar, not in the hammer,
=
and that smoothing the bar with sandpaper will clean up the termination
=
and permanently fix the buzz.  This is one of the few things I did not =
do, since I was really originally only out for a warranty tuning  ;  )
=
Thoughts? =20

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