This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Comments dispersed... ---ric =20 -----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 =20 Having the dampers lift at let-off would definitely be too late.=20 You can always try it on your action model... David Ilvedson, RPT Pacifica, California =20 =20 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. =20 =20 . And as Dean noted, the fingers have more speed at the point where the = key contacts the underlever. Makes a big difference. =20 OK half way down. =20 =20 =20 =20 =20 "Frankly it doesnt' concern me what Seiler might think but rather my clients" Regards DAle Erwin =20 =20 Even if Seiler might be interested in your improvements? -0-0-0 ric =20 _____ =20 Original message From: Erwinspiano@aol.com To: pianotech@ptg.org Received: 1/19/2006 7:32:48 AM Subject: Re: Lightening touch by changing damper timing redux Richard Please hear me & with all due respect. I can feel that . 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. 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. Regards DAle Erwin 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.=20 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 www.pnotec.com <http://www.pnotec.com/> =20 =20 =20 Dave Stahl Dave Stahl Piano Service 650-224-3560 http://dstahlpiano.net/ <http://www.dstahlpiano.net/>=20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/85/40/b7/8d/attachment.htm ---------------------- multipart/alternative attachment--
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