This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Roger: The action is workable. The key ratio is .53 for naturals and .55 for = sharps. The knuckles are 17mm and the dip is not excessive. The caps = are centered under the heels. It's not grossly out, don't misunderstand = me. The action feels nice. I just noticed that the acceleration rate = was different and have noticed this variation periodically. In this = case once the static friction is broken the hammer begins to accelerate = more quickly than many I have weighed off. Anyway, on to the next one. = I'm tempted to try S&S parts on the next one I do, I'm glad to hear you = were happy with the quality control. David Love ----- Original Message -----=20 From: jolly roger=20 To: pianotech@ptg.org=20 Sent: August 24, 2001 11:17 PM Subject: Re: hammer acceleration At 09:30 PM 8/24/01 -0700, you wrote:=20 Roger: It is a Steinway from the 1980's and its a bit of a mess. Sharps = and naturals have different key ratios (oops). =20 Hi David, This is starting to look like a misplaced capstan line. = How much dip is needed to give you correct let off and after touch? = How far off are you from the magic line at half blow distance? Is the = heel centred over the capstan? These questions will point you towards probable geometry problems. I have just finished installing the all new Steinway parts on a 69' = D, I'm delighted with the results. Suprised the hell out of me. But = they have lived up to all the Reno hype. 51-47gm DW with mid twenties = UP. The new Knuckles look like kangaroo skin, definitely not buck = skin, no large cup like the last S & S shanks that I used, and no where = near as rough. All flanges had very acceptable friction. Good luck in your quest. Roger All shanks and wippens less than 1gm variance. Again a hugh = improvement from the last set of parts that I used from them. ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/42/35/9b/33/attachment.htm ---------------------- multipart/alternative attachment--
This PTG archive page provided courtesy of Moy Piano Service, LLC