<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=blue id="role_body" = bottomMargin=7 leftmargin=7 topmargin=7 rightMargin=7> <div class=Section1> Comments = dispersed……. ---ric   <div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in = 0in 4.0pt'> -----Original Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Piannaman@aol.com Sent: Thursday, January 19, 2006 10:25 = PM To: pianotech@ptg.org Subject: Re: Lightening = touch by changing damper timing redux   <div> <div> <div> Having the dampers lift at let-off would definitely be too late.  You can always try it on your = action model... David Ilvedson, = RPT Pacifica, California</span= >     The first contact of the jack with the let off button = is not let off.   Let off occurs after the jack has hit the let-off = button and slid off the knuckle allowing “drop” (when you do it = with an action model) or “check” when you are actually playing the = piano.  Look at your action model and see if the jack does not first = contact the let off button at about half way down. Does your action model have a = damper lever?   I will bet the two contact points are so close as to = say they are the same.   It takes a certain amount of travel of = the key for the “slid out” of the jack from under the knuckle and of = course the diameter of the knuckle and how flat it is determine this travel.     .  And as Dean noted, = the fingers have more speed at the point where the key contacts the underlever.  Makes a big difference.   OK half way down.  </div> <div>   </div> <div>   </div> <blockquote style='border:none;border-left:solid blue = 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:4.0pt;margin-top:5.0pt;margin-bottom:5.0pt'>     ”Frankly = it doesnt' concern me what Seiler might think but rather my clients”  = Regards DAle Erwin  =   = Even if Seiler might be interested in your = improvements?  -0-0-0 ric   <div style='border:none;border-left:solid black 2.25pt;padding:0in 0in = 0in 4.0pt'> <div class=MsoNormal align=center style='text-align:center'> <hr size=3 width="100%" align=center> </div> Original message From: Erwinspiano@aol.com<f= ont size=2 color=black face=Arial> To: pianotech@ptg.org Received: 1/19/2006 7:32:48 AM Subject: Re: Lightening touch by changing damper timing = redux <div>  <fon= t color=black face=Arial>   Richard <div>   Please = hear me & with all due respect.  I can feel that = . </div> <div>    = Actually, IMHO,  an 1/8 th inch in damper lift timing can make a = HUGE =  difference in action feel especially with high ratio actions.  Frankly it = doesnt' concern me what Seiler might think but rather my = clients. </div> <div>    = There is a sweet spot for ,most pianos, & when setting this up  I = find it most often that spot to be at half travel when the key aciton cycle is = at it's most efficient & friction free spot in  movement  Picking = up the damper prematurely can increase the feel of touch weight or heavy touch syndrome dramatically on some actions.   I'm always looking = for the optimum sweet spot when setting up a custom balnced action so that I = don't inadvertantly sabatoge all that fiddlin & didlin I just went thru to create a = very fluid action feel. </div> <div>   = Regards </div> <div>   DAle = Erwin </div> <blockquote style='border:none;border-left:solid blue = 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:4.0pt;margin-top:5.0pt;margin-bottom:5.0pt'> The damper timing I thought was determined by the manufacturer.  When the key goes down it meets a = couple of resistance points.  One, the end of the key contacting the damper lift lever (but who can feel = that?) , and two, the jack contacting the let off button. (which everybody can feel)  Since the contact between the key and damper = lift lever is  what, 1/8 inch leeway what difference does it really = make?  The most important consideration is that dampers lift as a unit as the = damper pedal is depressed so that “half dampening” can be utilized. = I can imagine asking any of the = piano makers including Seiler who show up for the National Convention where = they prefer the key to hit the damper lever and why.    ---ric   <a href="http://www.pnotec.com/" title="http://www.pnotec.com/">www.pnotec.com</a> </blockquote> </div> <div>   </div> </div> </blockquote> </div> </div> <div>   </div> <div> Dave Stahl Dave Stahl Piano Service 650-224-3560 <a = href="http://www.dstahlpiano.net/">http://dstahlpiano.net/</a></spa= n> </div> </div> </div> </body> </html>