<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>Not in the Stanwood method that I am aware of. You have to use standard distance formulas incorporating the three levers as a sum of the key, wippen and shank. The Stanwood method uses weight to determine the action ratio. It is the one drawback as it will not accurately give you an analysis of how the action will regulate. To do a thorough action analysis you should incorporate both distance and weight measurements. </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <div> <p><font size=2 color=navy face="Times New Roman"><span style='font-size:10.0pt; color:navy'>David Love<br> davidlovepianos@comcast.net<br> www.davidlovepianos.com</span></font><font color=navy><span style='color:navy'> </span></font></p> </div> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br> <b><span style='font-weight:bold'>From:</span></b> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <b><span style='font-weight:bold'>On Behalf Of </span></b>vince mrykalo<br> <b><span style='font-weight:bold'>Sent:</span></b> Thursday, July 05, 2007 8:29 PM<br> <b><span style='font-weight:bold'>To:</span></b> pianotech@ptg.org<br> <b><span style='font-weight:bold'>Subject:</span></b> RE: Action ratio and knuckle distance</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> <p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left: .5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Is there a formula that uses knuckle dimensions in figuring out AR (action ratio)?  I am not finding it in my notes, and I remember some Stanwood formula that used that knuckle dimension in one of the formulas. </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>From: "David Love" <davidlovepianos@comcast.net><br> To: "'Pianotech List'" <pianotech@ptg.org><br> Date: Wed, 4 Jul 2007 12:03:41 -0700<br> Subject: RE: Action ratio and knuckle distance<br> <br> <br> </span></font></p> <U1:PLACE u2:st="on"> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>Actually, Stanwood’s equation of balance won’t tell you that.  The knuckle hanging is not isolated in the formula.  You have to sample and do a weigh off.  </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face="Times New Roman"><span style='font-size:10.0pt;color:navy'>David Love<br> davidlovepianos@comcast.net<br> www.davidlovepianos.com</span></font><font color=navy><span style='color:navy'> </span></font></p> </div> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br> <b><span style='font-weight:bold'>From:</span></b> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <b><span style='font-weight:bold'>On Behalf Of </span></b>Farrell<br> <b><span style='font-weight:bold'>Sent:</span></b> Wednesday, July 04, 2007 11:47 AM<br> <b><span style='font-weight:bold'>To:</span></b> Pianotech List<br> <b><span style='font-weight:bold'>Subject:</span></b> Re: Action ratio and knuckle distance</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Stanwood's equations of balance would tell you that. Are you familiar with David Stanwood's work?</span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Terry Farrell</span></font></p> </div> </div> <blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>----- Original Message ----- </span></font></p> </div> </div> <div style='font-color:black'> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in;background:#E4E4E4'><b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span></font></b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a href="mailto:madvinmryk@yahoo.com" title="madvinmryk@yahoo.com">vince mrykalo</a> </span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:bold'>To:</span></font></b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a href="mailto:pianotech@ptg.org" title="pianotech@ptg.org">pianotech@ptg.org</a> </span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Sent:</span></font></b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Wednesday, July 04, 2007 2:03 PM</span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Subject:</span></font></b><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Action ratio and knuckle distance</span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> </div> <blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>How do you figure out the change that would occur in ACTION RATIO (AR) if everything remains constant (strike weight, front weight,wippen balance weight, and balance weight) except the knuckle is changed from 16.2 mm to 17mm, on paper, without actually trying it out on the action?</span></font></p> </div> </div> </blockquote> <div style='margin-left:.5in;margin-bottom:12.0pt'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div id=RTEContent> <div id=RTEContent> <div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Vince Mrykalo RPT MPT</span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 color=red face="Times New Roman"><span style='font-size:12.0pt;color:red'>University of Utah</span></font></p> </div> </div> <div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> </div> </div> </div> </blockquote> <p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left: .5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </U1:PLACE> <div id=RTEContent> <div id=RTEContent> <div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Vince Mrykalo RPT MPT</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 color=red face="Times New Roman"><span style='font-size:12.0pt;color:red'>University of Utah</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><strong><b><i><font size=3 face="Times New Roman"><span style='font-size:12.0pt;font-style:italic'>"Minél több a változás, annál nagyobb az állandoság"</span></font></i></b></strong></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><strong><b><i><font size=3 face="Times New Roman"><span style='font-size:12.0pt;font-style:italic'>The more I learn, the less I know.</span></font></i></b></strong></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><a href="http://www.mrykalopiano.com"><strong><b><font face="Times New Roman">www.mrykalopiano.com</font></b></strong></a></span></font></p> </div> </div> </div> </div> <p style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> <div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> <hr size=1 width="100%" align=center> </span></font></div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Building a website is a piece of cake. <br> Yahoo! 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