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<HTML><HEAD><TITLE>Re: rear string lengths</TITLE>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=davidlovepianos@earthlink.net
href="mailto:davidlovepianos@earthlink.net">David Love</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> December 05, 2002 4:24 =
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: rear string =
lengths</DIV>
<DIV><BR></DIV>
<DIV><FONT size=2>Should the backscale length be taken into =
consideration when
setting down bearing? Since a shorter backscale doesn't allow as =
much
freedom of movement for the bridge, would you, then, consider reducing =
the
bearing on a piano, or section, that had a shorter backscale, and vice =
versa? Is there some formula or general rule of thumb for
this.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>David Love</FONT></DIV>
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<DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" =
color=#000080
size=3>Yes. Conventional wisdom tells us to set bearing very light =
in the
bass. This is why. With the extremely short backscales commonly =
found in the
low bass of <EM>modern</EM> pianos setting any kind of string =
deflection is
going to tie the bridge/soundboard assembly down completely. =
</FONT></DIV>
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size=3></FONT> </DIV>
<DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" =
color=#000080
size=3><IMG alt="" hspace=0
src="cid:00ca01c29cbf$cadf17a0$afe2b1d8@delsmachine" =
align=baseline
border=0></FONT></DIV>
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size=3></FONT> </DIV>
<DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" =
color=#000080
size=3>With a backscale as shown above normal string bearing -- in =
this case
about 0.5º string deflection -- is not only possible, but
necessary.</FONT></DIV>
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size=3></FONT> </DIV>
<DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" =
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size=3>Del</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>