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<DIV><FONT face=Arial size=2>Hi Joe, hi Ric,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>itīs also time to throw =
away those old
petrified and brittle stradivariīs *g*</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>regards,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Bernhard</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>----- Original Message ----- </DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
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<BLOCKQUOTE dir=ltr
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<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=joegarrett@earthlink.net =
href="mailto:joegarrett@earthlink.net">Joe
Garrett</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> Saturday, October 23, =
2004 1:46
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re-ribbing an olde =
board</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Yes, I changed the
subject.<G></FONT></DIV>
<DIV><FONT face=Arial size=2>The one thing that gets me to NOT =
want to do a
re-ribbing of an olde board, is the fact that wood does age. Forget =
the
compression factor for now. Let's just consider this: In the aging =
process
of wood, it loses it's cellular cohesion/bonding. At some point, =
this aging
process creates what is known as Brash Failure. If wood is kept in a =
consistant environment, it will eventually turn to stone, (ie =
petrify). The
Brash Failure occurs about half way to the petriying stage. =
</FONT></DIV>
<DIV><FONT face=Arial size=2>Most of us have run into the action =
w/parts
that defy repair. These actions are in the first stages of Brash =
Failure.
The best way to explain how the wood reacts is: a new shank/dowel, =
when
broken will splinter. One with Brash Failure will break cleanly, as =
if it
were sawn. I've seen this problem on parts that were less than =
50years olde,
so there's really no way of telling when this will =
occur.</FONT></DIV>
<DIV><FONT face=Arial size=2>So, back to the boards....I feel =
that there is
no way of knowing how much more time the wood, of the sound board =
will have,
so I'm very reluctant to re-rib a board, even though it is an =
intriguing
idea/technique. I think, that if I'm going to go to all the trouble =
to take
a board out, then I'll improve on what was there originally, if I
can.</FONT></DIV>
<DIV><FONT face=Arial size=2>Best Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>Joe Garrett, R.P.T.<BR>Captain, =
Tool
Police<BR>Squares R =
I</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>