[CAUT] Agraff levels

Becker, Lawrence (beckerlr) BECKERLR at UCMAIL.UC.EDU
Thu Jul 20 06:40:22 MDT 2006


Joe-

 

I have a way that works for me to use your bubble gauge near the struts
and where there isn't room between the dampers and v-bar.  I use a short
section of flat brass that has been squared at both ends.  Stand it
upright on the strings just in front of the damper, with the bottom of
the level in solid contact with the top of the brass piece.  I center
the bubble, then pluck the strings.  (Different than sitting the gauge
on the strings and seeing where the bubble goes.)  Trying to hold both
pieces in one hand might feel a little fumbly at first, but if I can do
it, so can most other folks.

 

Lawrence Becker, RPT

Piano Technician

College-Conservatory of Music

University of Cincinnati

________________________________

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Joe And Penny Goss
Sent: Wednesday, July 19, 2006 3:45 PM
To: College and University Technicians
Subject: Re: [CAUT] Agraff levels

 

Hi Should have proofed

Their

The thinner vial is inserted into a hole drilled into the 1/4" body of
the level with a window that helps make certain the tool is used in the
same orientation each and every time.

The most often asked question?

"Does the piano need to be level?"

Yes, but only to determine if the bubble is in the window. If it is,
level to the same spot.

If it is not, one needs to shim a leg.

With uneven agraff,

level the strings to the foot of the tool with the least slant, and file
the hammer to mate the string.

At the struts often one or two unisons can not be leveled with the foot.
Eric Schandall showed me how he lays the level on its side under the
strut to reach these strings. 

Eric has purchased 20 or so levels. I think he gives them away to folks
who attend Steinway seminars and do not have one <g>

Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com

	----- Original Message ----- 

	From: Joe And Penny Goss <mailto:imatunr at srvinet.com>  

	To: College and University Technicians <mailto:caut at ptg.org>  

	Sent: Wednesday, July 19, 2006 1:16 PM

	Subject: Re: [CAUT] Agraff levels

	 

	Hi Lance,

	To my knowledge string - hammer mating was never done on the
level ( sorry ) that it is today.

	It was more a mater of mating the hammer to whatever the strings
were. Sorry if there was a problem when the una corda pedal was used.

	It may have been Fazioli who was the first to use a level on
their instruments. There level was / is 

	a piece of brass H channel with a vial in the top and the base
cut so it will cover just one unison.

	Very light and for me too light. When one plucks the string too
hard to test for good mating, the level tends to bounce off the unison.

	I introduced my first level at the Orlando national. It was way
too light. Only 10 were made.

	We settled on using a brass blank that weighs about 45 grams and
with the vial almost 50 grams.

	The only real change in the brass model was to use a thinner
vial so that the tool would stand up a little better to dropage without
the vial popping off.

	Joe Goss RPT
	Mother Goose Tools
	imatunr at srvinet.com
	www.mothergoosetools.com

		----- Original Message ----- 

		From: lafargue at bellsouth.net 

		To: 'College and University Technicians'
<mailto:caut at ptg.org>  

		Sent: Wednesday, July 19, 2006 8:42 AM

		Subject: Re: [CAUT] Agraff levels

		 

		At the beginning of this thread I was concerned about an
Estonia with tilted agraffes and uneven agraffe/string holes.  It was to
the point that I couldn't bend a string enough to compensate for good
string/hammer mating. I have seen this on other pianos, but not this
much.  

		 

		It would be interesting to know who makes agraffes and
are the plate makers aware of the importance of a level plane (duh,
probably).  With the increase in our world-wide market for parts now, I
wonder who makes them.  

		 

		The bottom line is that you cannot prep a piano to a
high level without this to lay a foundation on.  

		 

		 

		Lance Lafargue, RPT

		LAFARGUE PIANOS, LTD

		New Orleans Chapter, PTG

		985.72P.IANO

		lafargue at bellsouth.net

		www.lpianos.com <http://www.lpianos.com/> 

		<http://www.lafarguepianos.com/>  

		 

		 

			-----Original Message-----
			From: caut-bounces at ptg.org
[mailto:caut-bounces at ptg.org] On Behalf Of Fred Sturm
			Sent: Tuesday, July 18, 2006 8:53 AM
			To: College and University Technicians
			Subject: Re: [CAUT] Agraff levels

			I don't know where Steinway buys agraffes, but
they now own Kelly Plate, and they have upgraded that facility to
install a computer controlled drilling process. The spacing of agraffes
in new pianos is MUCH better in the past two to three years. I suspect
the square of the holes (hence lack of cant of the agraffes) is much
better, too - I haven't noticed much trouble leveling strings on the few
new instruments I have serviced. They used to have Kelly drill their
plates. Bad idea.  

			All that said, perfection of hole drilling in
cast iron is iffy at best. The unevenness of the material itself causes
bits to chatter, at least in my experience. It's not like drilling
brass.

			

			Regards,

			Fred Sturm

			University of New Mexico

			fssturm at unm.edu

			 

			
			
			

			 

			On Jul 17, 2006, at 8:04 PM, Willem Blees wrote:

			
			
			

			It sounds like we're talking about two different
issues. One is the 

			level of the agraff itself, compared to the
level of the of the plate. 

			What you claiming is that the plane of the
agraff holes are not level 

			with the plate. Which could be caused by poor
drilling, or that the 

			counter sink of the agraff hole is not flat,
which will cause the 

			agraff to cant to one side when it is tightened.


			 

			The other issue is the holes in the agraff,
which is what I was 

			referrring to. Although there might be very
minute differnces in the 

			plane of the holes compared to the top of the
agraff, I think the holes 

			themselves are level. 

			 

			BTW, does Steinway make their own agraffs, or
are they outsourced?

			 

			Wim 

			Willem Blees, RPT

			Piano Tuner/Technician

			School of Music

			University of Alabama

			Tuscaloosa, AL USA

			 

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