knuckle size and centerpin height

Vince Mrykalo REEVESJ@ucs.byu.edu
Mon, 31 Jul 1995 20:49:45 +0000 (MST7MDT)


> > the hammer flange center may be too low.  He stated that his research
> > indicates that by raising the pin's location at the flange by
> > 2mm on the Steinway shanks and flanges and I think, the other
> > styles as well (Tokiwa), gives the best results when replacing
> > parts, because that is where the original placement was. FWIW.
>
> Wouldn't this affect the "spread" the distance between the hammer flange
> center and the wippen flange center?  I hear the 4-13/32" is an _absolute_
> figure on Steinways and 4-27/64" on Baldwins?!?!
>
> David M. Porritt, RPT
> SMU - Dallas

I don't think I stated that quite right.  By raising the center 2mm,
it now resembles the original part.  The replacement parts (Tokiwa)
were too low in the past, therefore that did change not only spread,
but the height of the hammer flange center.  If a line is drawn
through the wip flange center, parallel to the keybed, the height
of the hammer flange center is set up at the Steinway factory to be
2.5" high.  This is what I observed while there.  An aside: Chris Robinson
arrived at a slightly larger figure empirically which he wasn't ready
to swear by at the time, but the figure was 2.66"

---
vince mrykalo  rpt

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The facts all contribute only to setting the problem, not to
its solution -
Ludwig Wittgenstein

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