<!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 6.00.6000.16587" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>I think of shear as being able to withstand some of the greatest forces</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>After thinking of all the loose ribs I've seen, I'd like to retract this statement.</FONT></DIV> <DIV><FONT face=Arial size=2>Fenton</FONT></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=fmurray@cruzio.com href="mailto:fmurray@cruzio.com">Fenton Murray</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, January 29, 2008 11:46 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Laminated panels (Farrell)</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>I do have a book of his on identification which I read, not sure if it's what your referring to. I thought you were talking about the shear forces on a glue joint. Of different types of forces (roll, tear, shear, impact) I'm making up terms here, I think of shear as being able to withstand some of the greatest forces. But, I'm no engineer. I'm thinking of a steady side load over a large flat or quartered glue surface, I can't think of how that could fail, given proper clamping and glue up. Anyway, I don't have the facility to manufacture a laminated panel so I'll be staying with solid construction, as I have been with ribs and bridge caps. But, I will soon probably make some laminated ribs. Were we talking about panels or ribs? I can't remember. Hope to see you in Anaheim. Carry on.</FONT></DIV> <DIV><FONT face=Arial size=2>Fenton</FONT></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=juderev@verizon.net href="mailto:juderev@verizon.net">Jude Reveley/Absolute Piano</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, January 29, 2008 7:22 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Laminated panels (Farrell)</DIV> <DIV><BR></DIV> <DIV><STRONG><FONT face=Arial size=2>Hey Fenton,</FONT><BR></STRONG></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV><FONT face=Arial size=2>Hi Terry and Jude,</FONT></DIV> <DIV><FONT face=Arial size=2>I'm following this with interest and think I'm missing something. I can't for the life of me see any weakness, from a strictly structural standpoint, of any component being laminated. This, I would think, would only help to increase stability and uniformity. Unless, of course the adhesive were faulty. Since we are assuming these components will not be below the water line or subjected to high heat, almost any accepted wood glue should be fine. I guess sub freezing temperatures should be considered. There is such a huge area of glue joint, I can't imagine a failure, but, I'm intrigued by your concern Jude, I hope you will share some of your research. </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><STRONG>Maybe there is no need for concern. I would refer everyone to read Bruce Hoadley's "Understanding Wood" if you haven't already, and if you have, reread the section on the strength of wood. There are several entries on horizontal sheer. I would be interested in any informed statements on its application to laminated ribs and panels.</STRONG></FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>BTW, Jude, I just got a tour of Rick Wheeler's shop, he say's hi. Loved your piano in Rochester.</FONT></DIV> <DIV><FONT face=Arial size=2>Fenton</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><STRONG>Thanks, that piano was a real challenge unto itself; and I was shaking in my boots given the company (remember my piano was right between Ron N's, Dale Erwin's and David Anderson"s). Rick is a pretty clever guy, isn't he.</STRONG></FONT></DIV> <DIV><FONT face=Arial size=2><STRONG></STRONG></FONT> </DIV> <DIV><FONT face=Arial size=2><STRONG>Best,</STRONG></FONT></DIV> <DIV><FONT face=Arial size=2><STRONG></STRONG></FONT> </DIV> <DIV><FONT face=Arial size=2><STRONG>Jude</STRONG></FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"><FONT face=Arial size=2></FONT> </BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>