<font color='navy' size='2' face='Comic Sans MS, sans-serif'><br> <br> <div style="color: navy; font-size: 10pt; font-family: 'Comic Sans MS', sans-serif; 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"><br> </font></font></font></b></font><font color="darkgreen"><span style="font-style: italic;"><b><font size="1"><br> <font color="darkgreen"></font></font></b></span></font><tt><tt><font color="darkgreen"><br>  </font><br> </tt></tt><span style="font-family: arial, helvetica; font-size: 10pt; ">From: Jim Ialeggio <jim@grandpianosolutions.com></span></div> <div><br> <br> <div id="AOLMsgPart_0_1c4f6cab-e31f-41b4-b575-913ce48435d1" style="margin: 0px; background-color: rgb(255, 255, 255); "> <pre style="color: rgb(0, 0, 0); font-size: 9pt; "><tt><font face="Tahoma, Verdana, Arial, sans-serif">Ron said: <It always annoyed me that the cumulative leverage of the presumed moment arms matched so poorly with Dale's 6mm in/out direct measurement. Something's wrong, and I'll take direct first. </font><font face="Comic Sans MS, sans-serif">Jim wrote</font><font face="Tahoma, Verdana, Arial, sans-serif"> My take...the position of half stroke should be determined by 1st determining the full arc the hammer would travel, driven by the key at its full dip, with the hammer unimpeded by the letoff button. Full hammer travel in this scenario is of course more than blow(-)letoff, but it exceeds blow as well.</font></tt></pre><pre><font face="Comic Sans MS, sans-serif"><span style="font-size: 9pt; "><font color="#dc143c"> </font><font color="#0000ff">Jim.</font></span></font></pre><pre><font face="Comic Sans MS, sans-serif"><span style="font-size: 9pt; "><font color="#0000ff">I like the way you think</font></span></font></pre><pre><font color="#0000ff"><font face="Comic Sans MS, sans-serif"><span style="font-size: 9pt;"> Take the let-off button off and toss out the drop screw too. Now nothing is in the way to impede hammer rrise. </span></font></font><font color="#0000ff"><font face="Comic Sans MS, sans-serif"><span style="font-size: 9pt;">Now</span></font></font><font face="Comic Sans MS, sans-serif" style="color: rgb(0, 0, 255); "><span style="font-size: 9pt;"> set a very </span><span style="font-size: 12px;">accurate</span><span style="font-size: 9pt;"> 10 mm key dip, (however one does that) , then set a modest weight on the key to</span></font><font face="Comic Sans MS, sans-serif" style="color: rgb(0, 0, 255); "><span style="font-size: 9pt; "> depress it fully, then</span></font><span style="color: rgb(0, 0, 255); font-size: 9pt; font-family: 'Comic Sans MS', sans-serif; "> simply measure the total hammers rise. Likely it will be 55 mm to 65mm. Divide by 10 equals a totally accurate direct measurement figure</span><span style="font-size: 9pt; color: rgb(0, 0, 255); font-family: 'Comic Sans MS', sans-serif; "> for action ratio.</span></pre><pre><span style="font-size: 9pt; color: rgb(0, 0, 255); font-family: 'Comic Sans MS', sans-serif; ">Dale</span></pre><pre> <b style="color: rgb(65, 105, 225); font-family: 'Comic Sans MS', sans-serif; font-size: x-small; white-space: normal; "><font face="Georgia, Times New Roman, Times, Serif"><font color="black"><font color="mediumblue" face="Comic Sans MS, sans-serif">Dale Erwin R.P.T.<br> <font color="green">Erwin's Piano Restoration Inc.</font></font></font></font></b> </pre><pre><tt><span style="font-size: 9pt;"> Jim Ialeggio -- Jim Ialeggio </span><a href="mailto:jim@grandpianosolutions.com" style="color: rgb(0, 0, 0); font-size: 9pt; font-family: Tahoma, Verdana, Arial, sans-serif; ">jim@grandpianosolutions.com</a><font face="Tahoma, Verdana, Arial, sans-serif" style="color: rgb(0, 0, 0); font-size: 9pt; "> 978 425-9026 Shirley Center, MA </font></tt></pre> </div>  </div> </font>