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<DIV><FONT face=Arial size=2>Bradley;</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> No, unfortunately, =
it's not that
predictable. In order to know exactly how much overpull you need, you =
would have
to take into consideration things like the thickness of the soundboard, =
the
thickness of the plate, the amount of crown, the rim, and the amount of =
tension
from it to the soundboard all the way around it. That's why we have to =
do two
passes. You do one and you see how the piano reacts. I've wondered about =
this as
I've done more pitch raises than I could ever count, and no two pianos =
really
react the same. </FONT></DIV>
<DIV><FONT face=Arial size=2> Oh, and if you're =
thinking of
doing a re-calculation for every note; don't bother, I've tried it and =
it still
didn't come out any better than a standard pitch raise. </FONT></DIV>
<DIV><FONT face=Arial size=2> As the Late, Great, =
George
Defebaugh would say; You really can't do a pitch raise and a fine tuning =
at the
same time.</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=bsnook@pacbell.net =
href="mailto:bsnook@pacbell.net">Bradley M.
Snook</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, March 28, 2002 =
6:51
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Overpull</DIV>
<DIV><BR></DIV>> Yes, there are =
ways.
They are called SAT,RCT, VT etc. (Pitch<BR>raisins<BR>> don't =
mean
throwing dried grapes around).<BR><BR>Actually, I kind of feel that =
current
technology is like throwing the dried<BR>grapes all over the floor. =
Results
that are within 2-3 cents is good, I'm<BR>just wondering if we can do =
better?
I don't completely understand what goes<BR>on in the background of the =
software that you mentioned, but usually<BR>overpull is a certain =
general
percentage (like 25%) . . . I am wondering if<BR>it is possible to =
calculate
something that is note specific (like 23.42%,<BR>24.01%, then 24.42%). =
Is drop
predictable enough?<BR><BR>Bradley M. Snook</BLOCKQUOTE></BODY></HTML>