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<DIV><FONT size=2>Friction was pretty uniform ranging from 15-12 g =
from bottom
to top. slightly high due to heavy Steinway hammers =
probably. I do
check the knuckle heights since you mentioned that on a post some time
ago. They were very consistent on this set. The acceleration =
characteristic was there after I re-weighed the piano for uniform =
balance
weight.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>David Love</FONT></DIV>
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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=jon.page@verizon.net =
href="mailto:jon.page@verizon.net">Jon Page</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> August 26, 2001 5:00 =
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: hammer =
acceleration</DIV>
<DIV><BR></DIV><FONT size=3>At 06:04 PM 08/25/2001 -0700, you
wrote:<BR></FONT>
<BLOCKQUOTE cite type="cite"><FONT size=2>Roger:</FONT><FONT
size=3><BR> <BR></FONT><FONT size=2>The action is =
workable. The
key ratio is .53 for naturals and .55 for sharps. The knuckles =
are
17mm and the dip is not excessive. The caps are centered under =
the
heels. It's not grossly out, don't misunderstand me. The =
action
feels nice. I just noticed that the acceleration rate was =
different
and have noticed this variation periodically. In this case =
once the
static friction is broken the hammer begins to accelerate more =
quickly than
many I have weighed off. Anyway, on to the next one. I'm =
tempted
to try S&S parts on the next one I do, I'm glad to hear you were =
happy
with the quality control.</FONT><FONT =
size=3><BR> <BR></FONT><FONT
size=2>David Love</FONT><FONT =
size=3></FONT></BLOCKQUOTE><BR>Could it be that
the ones which accelerate faster also have a lower friction or Balance =
Weight?<BR>Check knuckle height, there may be a noticeable difference =
from
note to note;<BR>another process prior to shank installation is =
measuring
knuckle height and<BR>grouping similar ones =
together.<BR><BR>Regards,<BR><FONT
size=3>Jon Page, piano technician<BR>Harwich Port, Cape =
Cod,
Mass.<BR><A href="mailto:jon.page@verizon.net"
eudora="autourl">mailto:jon.page@</A>verizon<A
href="mailto:jon.page@verizon.net" eudora="autourl">.net</A><BR><A =
href="http://www.stanwoodpiano.com/"
=
eudora="autourl">http://www.stanwoodpiano.com</A><BR>~~~~~~~~~~~~~~~~~~=
~~~~~~~~~~~~~~~~~~~~~~</FONT>
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