[CAUT] Tuning Hammers

James Ellis claviers@nxs.net
Tue, 24 Jan 2006 11:57:50 -0500


Re. Tuning hammers:  Jeff Stickney asked me to take a look at Fujan's web
site.  Jeff, I did, and I have seen their ads.  It's a neat idea, and one
that occurred to me years ago.  As a matter of fact, at one time I did see
a tuning hammer that used a hollow tube instead of a steel shank, but I
don't know who made it.

An aluminum tube is going to have much greater stiffness per weight than a
solid steel shaft.  But the fact remains, unless the tuning hammer is
really, really, flimsy, the flexure you feel is going to be coming from the
tuning pin itself, not the tuning hammer.  Note: I'm saying flexure, NOT
sloppiness.

My big gripe for the past 30 years has been tips that don't fit the tuning
pins, combined with some tuning pins that are lop-sided to begin with.  I
can still remember when I got my first really good tuning hammer as soon as
production started back up right after World War II.  I'll never forget the
solid feel that I got with it.  I still have it - original tip long since
worn out - but that tuning hammer suits me better than anything else I have
tried.

I do want to stress one more point that I made in my article on tuning
hammers in the August 1995 JOURNAL.  I have mentioned it before on this
list, but it needs to be repeated:  There has been - and still prevails - a
common misconception that an extra short head combined with a high angle
handle bore reduces bending of the tuning pin.  This is false.  The extra
short head would reduce the bending moment if it were not for the fact that
the high handle angle defeats it.  The angle of the elevation where the
force is applied is what determines the bending moment on the pin, not the
head length alone.  In my case, I prefer a 5 degree bore, and a head just
long enough to clear all the struts.  If you analyze the geometry, you will
see that you are better off with a medium head and a 5 degree bore than you
are with a super-short head and a super-high angle that puts the force -
your hand - way up in the air above the plane that's perpendicular to the
tuning pin.

No way would I use any tuning hammer with a 20-degree bore head.  I
normally carry five tuning hammers.  1) My old 1947 Hale with mediun 5-deg
head and #2 tip that I use for tuning grands;  2) A re-issue of the
original rosewood Hale, with extra short 5-deg head that I use for tuning
short verticals;  3) A little #2 gooseneck hammer for that occasional grand
A#1 that can't be accessed with anything larger; and 4 and 5) a gooseneck
and a T-hammer for harpsichords.  I also carry an assortment of heads with
tips already attached for those occasions when nothing else will work very
well.

Did someone say weight?  Yes.  That's why I have a separate aluminum case
just for tuning tools only, including an Accu-Tuner.

Jim Ellis  


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