Pinning and Tone

[Wolfley, Eric (wolfleel)]

I have installed a half dozen sets of these new S&S S&Fs  in the past few
months and have found them to be extremely consistent both in the knuckle
department as well as in the pinning. Using the Correx gauge at the screw
hole, I would say a good 80% of them have been right at 3 grams and all were
within Steinway's specs. The knuckle molding is actually phenolic resin
instead of wood (which makes sense I guess) and I have yet to see one that
wasn't at 90 degrees to the shank. I have seen no variation in knuckle size
from set to set or within a set. The Renner parts I have used recently have
been coming in far less consistent in terms of knuckle size, orientation to
the shank (far too many were not at 90 deg.), and pinning. As a matter of
fact, I started using the Steinway parts after visiting the factory for a
seminar and (like Fred) being impressed with the improvements in the action
part manufacturing. I used to use the Renner parts for their consistency but
in the past couple of years have noticed a lot more quality control and
consistency problems. I'd say that the Steinway parts have come from way
behind in quality to a notch ahead and am willing to pay extra for it. 

~~~~~~~~~~~~~~~~~~~
Eric Wolfley
Head Piano Technician
Cincinnati College-Conservatory of Music
University of Cincinnati
~~~~~~~~~~~~~~~~~~~

 -----Original Message-----
From: 	Fred Sturm [mailto:fssturm@unm.edu] 
Sent:	Tuesday, October 28, 2003 9:27 AM
To:	College and University Technicians
Subject:	Re: Pinning and Tone



--On Tuesday, October 28, 2003 6:04 AM -0500 A440A@aol.com wrote:
>
>       I also was impressed with that idea, until Bill Garlick informed
> that  after the long strips were sliced into individual units, they were
> placed in  bins.  That meant that shanks from one "set" would be mixed
> with another and the  practical result was that any given 88 shanks may
> have come from several  different beginnings.  It seems that the concept
> of consistancy wasn't in place  for this operation. That is why it is
> necessary to indivually set the jacks to  the knuckles,(the same mixing
> up occurred with the whippens, also.  Regards,
> Ed Foote RPT
> http://www.uk-piano.org/edfoote/index.html
> www.uk-piano.org/edfoote/well_tempered_piano.html
>  <A
> HREF="http://artists.mp3s.com/artists/399/six_degrees_of_tonality.html">
> MP3.com: Six Degrees of Tonality</A>

	Yes, that certainly occurred to me. But considering the accuracy of
the 
jigs they are using, the consistency from set to set is quite high. And 
compared to installing individual knuckles on individual shanks, there is 
far less room for variance. The proof is in the pudding. Setting jacks to 
knuckles on a raw factory piano, I found I could have just used a straight 
edge, or followed the machining marks on the wipps (that is, used them 
consistently as guides) and come out the same. If there was variance, I 
couldn't see it. Far different from earlier experience.
Regards,
Fred Sturm
University of New Mexico


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