I think your findings would be much more complete if you tried a titanium tuning lever. I would not go back to my Schaff rosewood lever after using Charles's titanium for two years. Rich ----- Original Message ----- From: "Ron Nossaman" <RNossaman@cox.net> To: "Pianotech" <pianotech@ptg.org> Sent: Wednesday, December 04, 2002 9:40 PM Subject: Re: Tuning levers > > >Ron, > > > >I've done a lot of study on the different MOE's of titanium vs steel. > >It's true that titanium is slightly more elastic than steel; but, with a > >10" or 11" lever, I think the real question should be, So what? All > >metals deflect to some extent. My own personal opinion is that this > >business of flexation is highly overrated. However I'd like to hear from > >other techs and hear if flexation has ever been a problem while tuning > >(other than with extension hammers). > > > >Charles Faulk > > > Hi Charles, > Everything I've found says titanium alloys are a little more than half the > MOE of steel. Most of what I read from other tech indicates that they think > titanium is stiffer than steel. T'aint so. Lower flex is, as far as I can > tell, the nearly universally stated desirable attribute of a tuning lever > shaft. Light weight seems to be next. Someone making a tuning lever from > titanium using dimensions similar to those they would use for steel, and > expecting the shaft to be stiffer are going to be disappointed. It will be > lighter, but it won't be nearly as stiff. I'm not at all concerned how > stiffness or weight is rated in the evaluation of tuning levers. I simply > thought it would be a good idea for anyone intending to make their own > lever (or anything else, for that matter) to learn enough about the > intended construction material to make intelligent design choices when they > are determining dimensions. > > Ron N > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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