---------------------- multipart/alternative attachment In a message dated 9/5/2004 1:33:55 PM Pacific Standard Time, Richard.Brekne@grieg.uib.no writes: Ric Good analysis. The short answer is your leverage is too good. Now I thought 48 mmm was standard spec for blow on most of Yamaha grands. I would set letoff closer as you did to consume some dip/aftertouch. Beyond this I suspect capstan placement could be too far back or perhaps a slight adjustment of the action spread would change the action key ratio enough to bring it back into tolerance. This is fairly unusual for Yamaha. With all their jigs & fixtures to assure uniformity action to action. This is odd. I don't like actions set up this way as the overall touch weight usual ends up heavy as is the typical problem with Baldwin. Are the knuckles perhaps to close to the center pin? This would also contribute to the problem. It could be one or more contributing factors but with Yamaha a compounding series of errors would be likely, Don't you think? Dale So... in the end.. I had 48+ mm blow, standard Yamaha spec letoff and drop, 10 mm dip, 64 mm key height and too much aftertouch with no real way of getting less. Ok.. I could have fudged a bit on let off... but a few tests didnt really get me where I wanted... I would have had to go with about 2 mm in the bass... 1 mm in the treble, and a 9.5 key dip to get the aftertouch down to where I usually like it... which is by no means too little. Anyone got an idea as to what could be wrong here ?? Cheer RicB ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/7b/37/0c/b6/attachment.htm ---------------------- multipart/alternative attachment--
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