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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoPlainText>OK, I got everything from the description except the hammer out so that changes that number to 135 from 127. That raises the ratio to 5.58. I remeasured the displacement as carefully as possible and got pretty much 6 (36/6). Going to the tip of the hammer pushes it up to 5.87 but you have to wonder about the meaning of having to tweak each number and what that means. <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=541 style='width:406.0pt;margin-left:-.75pt;border-collapse:collapse'><tr style='height:12.0pt'><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=72 nowrap valign=bottom style='width:.75in;border:none;border-bottom:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:Courier'>Ea<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border:none;border-bottom:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:Courier'>Ra<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=72 nowrap valign=bottom style='width:.75in;border:none;border-bottom:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>Ratio<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=109 nowrap valign=bottom style='width:82.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td></tr><tr style='height:12.0pt'><td width=72 nowrap valign=bottom style='width:.75in;border:none;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>Key<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;background:#92D050;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>240<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;background:#92D050;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>128<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=72 nowrap valign=bottom style='width:.75in;border:solid windowtext 1.0pt;border-top:none;background:yellow;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>0.53<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=109 nowrap valign=bottom style='width:82.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td></tr><tr style='height:12.0pt'><td width=72 nowrap valign=bottom style='width:.75in;border:none;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>Wippen<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;background:#92D050;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>63<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;background:#92D050;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>83<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=72 nowrap valign=bottom style='width:.75in;border:solid windowtext 1.0pt;border-top:none;background:yellow;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>1.32<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=109 nowrap valign=bottom style='width:82.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>Action Ratio<o:p></o:p></span></p></td></tr><tr style='height:12.0pt'><td width=72 nowrap valign=bottom style='width:.75in;border:none;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>Shank<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;background:#92D050;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>17<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;background:#92D050;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>135<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=72 nowrap valign=bottom style='width:.75in;border:solid windowtext 1.0pt;border-top:none;background:yellow;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>7.94<o:p></o:p></span></p></td><td width=72 nowrap valign=bottom style='width:.75in;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'></td><td width=109 nowrap valign=bottom style='width:82.0pt;border:solid windowtext 1.0pt;background:yellow;padding:0in 5.4pt 0in 5.4pt;height:12.0pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:10.0pt;font-family:Courier'>5.58<o:p></o:p></span></p></td></tr></table><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>David Love<o:p></o:p></p><p class=MsoPlainText>www.davidlovepianos.com<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>-----Original Message-----<br>From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Ron Nossaman<br>Sent: Saturday, September 22, 2012 8:57 AM<br>To: pianotech@ptg.org<br>Subject: Re: [pianotech] Action ration measuring<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>On 9/22/2012 10:30 AM, David Love wrote:<o:p></o:p></p><p class=MsoPlainText>> Using your method (if I understood it correctly) I get the following <o:p></o:p></p><p class=MsoPlainText>> on my action model.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>As unclear as my description was, I put the attached jpeg together. That might change things.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>>The measurement of dip to hammer travel yields 37/6 or<o:p></o:p></p><p class=MsoPlainText>> 6.16. Interestingly, your method of measuring the levers yields a lower<o:p></o:p></p><p class=MsoPlainText>> AR than my method (measuring the key to the end and the wippen to the<o:p></o:p></p><p class=MsoPlainText>> jack center pin) yet moving the dip measurement 20 mm in from the end of<o:p></o:p></p><p class=MsoPlainText>> the key will, of course, produce a higher action ratio than mine<o:p></o:p></p><p class=MsoPlainText>> measuring at the end of the key.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Wip out and hammer out is different too. Hammer out, for instance, is <o:p></o:p></p><p class=MsoPlainText>about half way between center pin to molding center, and center pin to <o:p></o:p></p><p class=MsoPlainText>strike point.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>>Perhaps these things are action<o:p></o:p></p><p class=MsoPlainText>> specific, though it’s hard to imagine why.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>I don't see how they could be either. Check the drawing against my poor <o:p></o:p></p><p class=MsoPlainText>description of measurement points, and see what you get. ???<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Ron N<o:p></o:p></p></div></body></html>