<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style></style></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1>My question still remains: How is bore determined for an upright piano, given varying degrees of rake?<o:p></o:p><o:p> </o:p>Will<o:p></o:p><o:p> </o:p>From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Dale Erwin Sent: Thursday, February 14, 2013 12:22 PM To: pianotech@ptg.org Subject: [pianotech] 1098 bore correction<o:p></o:p><o:p> </o:p>Jon <o:p></o:p><div> Sorry. Ray wasn't reading far enough. The spec is 2 1/4 bass and 2 5/8 tenor with 6 or 7 degrees of rake. <o:p></o:p></div><div>  He says the bore can vary a little.  What a shock.<o:p></o:p><div>Dale Erwin R.P.T. Erwin's Piano Restoration Inc. Mason & Hamlin/Steinway/U.S. pianos <a href="http://www.Erwinspiano.com">www.Erwinspiano.com</a> Phone: 209-577-8397 <tt> </tt> <tt>  </tt><o:p></o:p></div><o:p> </o:p><div>-----Original Message----- From: Ray Negron <<a href="mailto:ray@ronsenhammer.com">ray@ronsenhammer.com</a>> To: 'Dale Erwin' <<a href="mailto:erwinspiano@aol.com">erwinspiano@aol.com</a>> Sent: Thu, Feb 14, 2013 7:05 am Subject: RE: from Jon page on p-tech<o:p></o:p><div id="AOLMsgPart_1_3a875a7c-e243-4617-99b7-45de67e46388"><div><div>Stock bore is 2 1/8” bass & 1 13/16 treble. <o:p></o:p></div><div> <o:p></o:p></div><div>Ray Negron<o:p></o:p></div><div>Ronsen Piano Hammer Co.<o:p></o:p></div><div>1-800-864-0233<o:p></o:p></div><div><a href="mailto:ray@ronsenhammer.com">ray@ronsenhammer.com</a> <o:p></o:p></div><div> <o:p></o:p></div><div> <o:p></o:p></div><div> <o:p></o:p></div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><div>From: Dale Erwin [<a href="mailto:erwinspiano@aol.com?">mailto:erwinspiano@aol.com</a>] Sent: Thursday, February 14, 2013 9:38 AM To: <a href="mailto:ray@ronsenhammer.com">ray@ronsenhammer.com</a> Subject: from Jon page on p-tech<o:p></o:p></div></div><div> <o:p></o:p></div><pre><tt>I was handed a project that another tech could not finish due to a family</tt><o:p></o:p></pre><pre><tt>illness. New hammers are in the offing but I have a few concerns. </tt><o:p></o:p></pre><pre><tt>First, the shanks mic .210" but the hammers were bored to .218" (7/32). </tt><o:p></o:p></pre><pre><tt>That is way too loose. Could a paper shim be glued in on the non-string side</tt><o:p></o:p></pre><pre><tt>of the molding without causing a problem down the line? Secondly, the</tt><o:p></o:p></pre><pre><tt>hammers are bored close to the same length as these old, worn ones and there</tt><o:p></o:p></pre><pre><tt>are shims under the hammer rail already. What is a stock bore </tt><o:p></o:p></pre><pre><tt>for a S&S 1098?   Maybe I should plug these holes and rebore to bring </tt><o:p></o:p></pre><pre><tt>the action parameters to original specs.</tt><o:p></o:p></pre><pre><tt> </tt><o:p></o:p></pre><pre><tt>Regards,</tt><o:p></o:p></pre><pre><tt> </tt><o:p></o:p></pre><pre><tt>Jon Page</tt><o:p></o:p></pre><div> <o:p></o:p></div><div><div style='margin-bottom:12.0pt'>Dale Erwin R.P.T. Erwin's Piano Restoration Inc. Mason & Hamlin/Steinway/U.S. pianos <a href="http://www.Erwinspiano.com" target="_blank">www.Erwinspiano.com</a> Phone: 209-577-8397 <tt> </tt> <tt>  </tt><o:p></o:p></div></div></div></div></div></div></div></body></html>