<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; =
charset=iso-8859-1">
<META content="MSHTML 6.00.2800.1226" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: =
#ffffff"
bgColor=#ffffff>
<DIV>Hello Dale. I'm looking for a few more details describing your (or
anyone's) center-pin-anti-skid methods. I was planning on trying =
something
like that for my next board. I imagine the pins penetrate the panel side =
of the
rib maybe 4 to 8 millimeters (just enough to gain solid =
footing) and
penetrate the panel just a few millimeters (just enough to hold in =
position) -
is that correct? Do you taper your ribs before gluing to =
panel -
how do you handle running a pin through the thinner ends of =
the
rib? Do you just use two pins per rib (obviously on short ribs) or =
do you
maybe use three or more on the longer ribs?</DIV>
<DIV> </DIV>
<DIV>One other thought on glue cleanup - one thing that I was going =
to try
to implement - which relates to access for cleaning the glue joint =
squeeze-out.
Adjust the top beam of the pneumatic clamp so that the hose can inflate =
most of
its diameter (obviously maintaining full contact/pressure on rib). If =
the hose
is allowed to inflate a goodly amount of its diameter, rather than =
allowing only
a half-inch of its diameter and blobbing over the sides of the rib, you =
should
be able to maximize access to the rib/panel joint for cleanup. Or at =
least I
will be trying that next time.</DIV>
<DIV> </DIV>
<DIV>Thanks.</DIV>
<DIV> </DIV>
<DIV>Terry Farrell</DIV>
<BLOCKQUOTE dir=ltr
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=Erwinspiano@aol.com
href="mailto:Erwinspiano@aol.com">Erwinspiano@aol.com</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> Saturday, September 20, =
2003 10:16
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Glue cleanup on =
ribs</DIV>
<DIV><BR></DIV>
<DIV><FONT face="Times New Roman" color=#000040> <FONT
size=3> Trix and I pressed up a =
S&S O board
today. We tried using tight bond again but tried to get a better feel =
for just
the right amount of glue to apply so that only a small amount of =
squezze came
at the out when we turned up the 40 P.S.I air pressure. It =
worked much
better and the samller amounts of glue were more easily cleaned up =
with damp
rags and dry paper towell. With only 11 ribs the spacing between cauls =
was
wider and 1& 1/2 hrs. This will probably continue to be our chosen =
method.</FONT></FONT></DIV>
<DIV><FONT face="Times New Roman" color=#000040 =
size=3> Also on a
different subject ,on occasion we've had the ribs scoot sideways as we =
apply
pressure (this happened with go bars to) so we install short =
center pins
into the ribs glue surface to keep them from skidding sideways when =
the
pressures turned up.</FONT></DIV>
<DIV><FONT face="Times New Roman" color=#000040 =
size=3> Dale
Erwin</FONT></DIV>
<DIV><FONT face="Times New Roman" color=#000040 =
size=3> Erwins
Piano Restoration</FONT></DIV></BLOCKQUOTE></BODY></HTML>