This is a multipart message in MIME format ---------------------- multipart/alternative attachment Sorry for my ignorance but what is the "fish"? David Ilvedson Original message From: To: Received: Thu, 17 Feb 2005 22:09:52 EST Subject: Re: More CC vs RC questions was RE: Killer Octave &= Pitch Raise In a message dated 2/16/2005 12:19:41 A.M. Pacific Standard Time,= davidlovepianos@comcast.net writes: effect of softer hammer, softer panel, might produce a tone that= while having adequate power (loudness) might not have the balance of= partials to make the tone interesting, lively, expressive, you choose= your favorite word. So control of the panel's EMC, while seemingly= not as critical for purposes of achieving stiffness in the assembly= overall, might still be very critical in order to achieve a certain tonal balance. David I think this is possible & is my thinking. When panel= compression exsists some dynamic tension between the rib being= bent up a bit by the panel compression & the rib wanting to pull= it back down creates continual static & dynamic reactive force.= Perhaps some of this is healthy & building boards attempring to= shape & mold certain characterisitcs is very interesting. I've been logging all the data per given board to keep track of= the design parameters & then draw a conclusion based on the= sound I get. Ie original rib width,height,length. New rib crown= width ,new length, Panel thickness , tapering ,where & how much.= Rib tapering etc. I installed the Mason board with cut-off, fish and altered rib= heights & widths, weds. & when the clamp came off in the morning= & it already had a very healthy & vibrant boom/rap even though= the tight bond surely isn't thoroughly cured. This is not= usually the case. Dale ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/1b/11/f1/c2/attachment.htm ---------------------- multipart/alternative attachment--
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