<div> Ok, ok, perhaps too broad a generalization :-), but a really, really common cause. And call it what you like, Ric, the clearance of the jack from the butt in an upright is as much aftertouch as the distance the jack travels after escapement in a grand, and can be felt in the key with a sensitive touch. And can be regulated by the same "family" of aftertouch regulations. With respect...:-)<br>
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-----Original Message-----<br>
From: Richard Brekne <ricb@pianostemmer.no><br>
To: pianotech@ptg.org<br>
Sent: Tue, 17 Jun 2008 4:13 am<br>
Subject: set letoff to get acceptable aftertouch?<br>
<br>
<div id="AOLMsgPart_0_95150f15-0c83-4ef2-b40b-6516df48a919" style="margin: 0px; font-family: Tahoma,Verdana,Arial,Sans-Serif; font-size: 12px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
With respect.... I beg to differ. There are a host of causes for
bobbling hammers and ruling out too little jack escapement is very
quickly done on an upright. One other point here folks. We dont really
have aftertouch in an upright.... not in the sense of the word we use in
grands. For many years it was standard to simply not call that after
escapement action in an upright <<aftertouch>> at all because it really
isn't the same thing. Tho to be sure sometimes the sensation can be
made to feel a bit similiar. Still... the key here (in the upright) is
jack escapement/clearance. <br>
<br>
Cheers <br>
RicB <br>
<br>
"Almost all "bobbling hammers" are the result of too little or no <br>
aftertouch due to settling of the keys at the balance rail." <br>
<br>
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