This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Dave, Would not that slow down the hammer? Joe Goss imatunr@srvinet.com www.mothergoosetools.com ----- Original Message -----=20 From: Piannaman@aol.com=20 To: pianotech@ptg.org=20 Sent: Sunday, April 27, 2003 11:32 PM Subject: Re: hammer velocity In a message dated 4/27/03 7:12:21 AM Pacific Daylight Time, = mjbkspal@execpc.com writes:=20 Between let-off and impact, the jack, rep lever, and string are not = in contact with the knuckle. The list of forces acting on the = hammer/shank assembly consists of gravity and center pin. period. Both = are acting to decelerate the hammer. Mike,=20 What about the flex of the hammer shank? When the jack releases, it = is no longer forcing the shank to flex, thus allowing it to spring back = into its original form a nano-second before striking the string. = Couldn't that cause acceleration of the hammer head? =20 Dave STahl ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/14/79/4e/32/attachment.htm ---------------------- multipart/alternative attachment--
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