Jim, After extensive empirical research I have determined that the shanks Renner and others sell are indeed octagonal, so your research has now been duplicated. A square with the corners cut off. I think hex rolls off the tongue better than oct and sounds more sexy or something. Its hard to stop being wrong sometimes. -----Original Message----- From: James Ellis [mailto:claviers@nxs.net] Sent: Thursday, November 20, 2003 3:43 PM To: caut@ptg.org Subject: Hexagonal Shanks Gentlemen: Stephen, Ron, Richard, Joe, et al, This silly argument got started when Joe said that a 3/32-inch hexagonal shank is as strong as a 1/4-inch round shank, and I challenged it. Now, it seems this discussion has gone off the deep end. Stephen (Dr. Birkett), I still say we are talking about piano hammer shanks of various dimensions made of maple and hornbeam woods, and not structural beams. I do understand that you and Ron want to use some well-known principles to compare the stiffness of one shape to the other. But please tell me, fellows, where are you finding those hexagonal shanks you keep talking about? All I have ever seen are either round, oval, square, or octagonal. I can't find any hexagonal ones. I don't want to be the only one in this group who is behind the times. I still plan to make some measurements of actual hammer shanks, just as they come from the box, and then I'll let you know what I find. Sincerely, Jim Ellis _______________________________________________ caut list info: https://www.moypiano.com/resources/#archives
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