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<div style="clear:both"><font size="1" color="royalblue"><b><font face="Georgia, Times New Roman, Times, Serif"><font color="black"><font color="mediumblue" face="Comic Sans MS, sans-serif">Dale Erwin... RPT</font><br>

</font></font></b></font><font color="darkgreen"><span style="font-style: italic;"><b><font size="1"><font color="black"><font color="blueviolet"><font color="black"> <font color="black" face="Comic Sans MS, sans-serif">Mason &amp; Hamlin</font><font face="Comic Sans MS, sans-serif">/Steinway/</font><font color="black" face="Comic Sans MS, sans-serif">U.S pianos</font><font face="Comic Sans MS, sans-serif"><br>

</font></font></font></font><font color="black" face="Comic Sans MS, sans-serif">www.Erwinspiano.com</font><br>

<font color="crimson" face="Comic Sans MS, sans-serif">209-577-8397</font><br>

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&nbsp;</font></tt></tt><font size="3" color="darkgreen" face="Comic Sans MS, sans-serif">
Yeah...This is a much better word picture.</font><font size="3" face="Comic Sans MS, sans-serif"> We should measure this phenomena and put it under a microscope, film it &amp; write an article about it....Nahhhh. LOL.<br>
Never the less it does(should) end the debate/argument<br>
Dale<br>

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<div class="MsoNormal"><font color="crimson"><span style="font-size:11.0pt;font-family:">Del wrote<br>
Actually,
 think of a feathered rib with the &lt;3/16” high ends set into notches 
in the rim and with the main body of the rib extending well below the 
bottom of the notch. When the center of the rib is pressed down the ends
 of the ribs—if you can see them move at all—will pull in very slightly.
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>

From: Delwin D Fandrich &lt;del@fandrichpiano.com&gt;<br>

To: pianotech &lt;pianotech@ptg.org&gt;<br>

Sent: Thu, May 24, 2012 8:23 am<br>

Subject: Re: [pianotech] [CAUT] Fwd: Mason &amp; Hamlin soundboard model with tuning fork<br>

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<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">Actually, think of a feathered rib with the &lt;3/16” high ends set into notches in the rim and with the main body of the rib extending well below the bottom of the notch. When the center of the rib is pressed down the ends of the ribs—if you can see them move at all—will pull in very slightly. </span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">&nbsp;</span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">… and, on a more practical level, think of that 4” (±) thick hard maple rim structure and then think of that &lt;3/8” soft spruce soundboard panel and—what?—a 3/16” (or thinner) rib end spaced every few inches and think to yourself, “in a bending contest which of these is going to give first?”</span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">&nbsp;</span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">Even if Ron’s point about rib geometry were not correct—though it is—the argument about the movement of the soundboard affecting the structure of the piano ends right here. As does the argument about the rim sustaining soundboard crown over time. </span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">&nbsp;</span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">ddf</span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">&nbsp;</span></div>



<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">Delwin D Fandrich</span><span style="font-size:10.0pt;font-family:"></span></div>



<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">Piano Design &amp; Fabrication</span><span style="font-size:10.0pt;font-family:"></span></div>



<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">6939 Foothill Court SW, </span><span style="font-size:10.0pt;font-family:">Olympia, Washington 98512 USA</span></div>



<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">Phone&nbsp; 360.515.0119 — Cell&nbsp; 360.388.6525</span><span style="font-size:10.0pt;font-family:"></span></div>



<div class="MsoNormal"><span style="font-size:10.0pt;font-family:"><a href="mailto:del@fandrichpiano.com"><span style="color:blue">del@fandrichpiano.com </span></a></span><span style="font-size:10.0pt;font-family:">— </span><span style="font-size:10.0pt;font-family:"><a href="mailto:ddfandrich@gmail.com"><span style="color:blue">ddfandrich@gmail.com</span></a></span><span style="font-size:11.0pt;font-family:"></span></div>



<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">&nbsp;</span></div>



<div class="MsoNormal" style="margin-left:36.0pt"><b><span style="font-size:10.0pt;font-family:">From:</span></b><span style="font-size:10.0pt;font-family:"> <a href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</a> [<a href="mailto:pianotech-bounces@ptg.org?">mailto:pianotech-bounces@ptg.org</a>] <b>On Behalf Of </b>Dale Erwin<br>

<b>Sent:</b> Thursday, May 24, 2012 7:46 AM<br>

<b>To:</b> <a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a><br>

<b>Subject:</b> Re: [pianotech] [CAUT] Fwd: Mason &amp; Hamlin soundboard model with tuning fork</span></div>



<div class="MsoNormal" style="margin-left:36.0pt">&nbsp;</div>



<div class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt"><span style="font-size:10.0pt;font-family:">Think rotate upward instead of pull in. Place a long flat stick across an open space supported at each end and press on the middle of it.&nbsp; Watch the the rib ends move/rotate upward not out .</span></div>



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<div class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt"><b><span style="font-size:7.5pt;font-family:">Dale Erwin... RPT</span></b><b><span style="font-size:7.5pt;font-family:"><br>

</span></b><b><i><span style="font-size:7.5pt;font-family:">Mason &amp; Hamlin/Steinway/U.S pianos<br>

<a target="_blank" href="http://www.Erwinspiano.com">www.Erwinspiano.com</a></span></i></b><b><i><span style="font-size:7.5pt;font-family:"><br>

</span></i></b><b><i><span style="font-size:7.5pt;font-family:">209-577-8397</span></i></b><b><i><span style="font-size:7.5pt;font-family:"><br>

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