Tuning levers

[Richard Oliver Snelson]

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
>
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