On Sat, Mar 21, 2009 at 7:30 PM, David Andersen < david at davidandersenpianos.com> wrote: > As do I.DA > > David, you've used the Fujan, right? How does the new Faulk compare? I'm not seeing how it could be stiffer than a hollow CF tube the diameter of a Fujan (or Gluzman). Rigidity comes from the large diameter of the hollow cylinder -- not from the fact that it's merely a CF rod. The smaller the CF rod or tube, the more flex it will have. In other words, even if you do put a 1/2" CF rod in a 5/8" hollow aluminum tube -- it still isn't as stiff as a Fujan. Unless there is some (unknown-to-me) coupling effect from the two used together. And unless it's made quite a bit shorter. If it's shorter, there won't be as much noticeable flex. But then, you'd get that same effect in greater proportion with the larger diameter CF tube if you used a shorter piece there. I'm haven't seen a new Faulk lever yet. Nor do I know the actual dimensions of the materials used. (I'm not an engineer, but I've played around with some numbers some time ago.) I know it's all about how it feels; numbers don't tell everything, but they do help. I await enlightenment. <G> -- JF -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090321/6f1e94b4/attachment.html>
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