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<DIV><FONT size=2>Thanks for the replys everyone. Newton and Jon =
honed in
on the info I was seeking. My post was perhaps a little vague but =
I was
looking for info on the side cut (tapering) not the tail arcing, but =
that was
interesting reading too.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Roger, steamed my first set of hammers the other day =
on a
Young Chang. Saved me a lot of filing and the tone mellowed out =
real nice
just like this particular customer likes. Can't wait to try it
again.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Doug Mahard</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A href="mailto:baldyam@sk.sympatico.ca" =
title=baldyam@sk.sympatico.ca>Roger
Jolly</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
href="mailto:pianotech@ptg.org"
title=pianotech@ptg.org>pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, April 14, 2000 =
3:05
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Grand hammer tail
shape.</DIV>
<DIV><BR></DIV><BR>Hi
=
Doug,<BR> &nbs=
p;
the tailing on the Korean piano you are talking about should be 2 1/2" =
to 3"
radius from the hammer shank to the bottom of the tail. The tailing =
should
also be at 90 degrees to the shank, and not the 15 degrees off set =
that you
will find from the factory.<BR>Correct tailing will give better =
checking and
reduce the wear on the flange centres. Having the tail square =
with the
hammer rail, will help to trap the tail into check, the angle that is =
there
from the factory is actualy self defeating, as it want's to push the =
hammer
out of check.<BR>If any checkering is required it should only be quite =
light.<BR>After tailing you will have to realign the face of the =
checks plus
reset the rake and distance, with care you can get these pianos to =
check at
1/2" in the bass on a <I>ppp</I> blow.<BR>The touch will also improve =
as this
will remove almost 1 gm of mass, netting you about 5 gms of down =
weight.<BR>We
taper and tail 100% of our Wurlitzer products with this =
problem.<BR>Regards
roger<BR><BR><BR>At 07:42 AM 14/04/00 -0400, you wrote:<BR>>Hi one =
and
all,<BR>><BR>>What are the criteria used in determining grand =
hammer
tail taper shape. Is<BR>>it factors of clearence with =
neighboring
parts and weight reduction? As<BR>>most of you know, the =
Korean
pianos come through with none of this done,<BR>>just the tail =
arcing and
some very rough ridges for checking purposes that<BR>>always seem =
to tear
up the backchecks prematurely.<BR>><BR>>Thanks and a good =
weekend to
all.<BR>><BR>>Doug Mahard<BR>> <BR>
<DIV>Roger Jolly</DIV>
<DIV>Saskatoon, Canada.</DIV>
<DIV>306-665-0213</DIV>Fax 652-0505 </BLOCKQUOTE></BODY></HTML>