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Thanks for sharing the photo. I'm sure these are expensive to
produce, but I think you would still have a some willing buyers if
you wanted to supply them. If so, do you think you would be able to
make them with different thread sizes (such as 5.65mm x 33 and
6.65mm x 33)?<br>
<br>
<br>
<br>
On 6/13/2012 5:57 AM, Overs Pianos wrote:
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<title>New custom agraffe design</title>
<div>Hi all,</div>
<div><br>
</div>
<div>I mentioned in a recent post that we were planning to
manufacture
special agraffes for our pianos, since I have finally had enough
of
brass agraffes which sometimes are capable of producing noise
aplenty,
at times even before an instrument leaves the workshop.</div>
<div><br>
</div>
<div>It took a while to get a result, but below is an image-link
which
shows a sample of the first batch of our special agraffes made
from
SAE 4140 alloy steel (this stuff is typically used for making
truck
drive axles). This sample has been hand polished and cleaned
ready for
Electroless Nickel (EN) plating. The plating is necessary for
two
reasons;</div>
<blockquote><br>
</blockquote>
<blockquote>1) To provide corrosion resistance</blockquote>
<blockquote><br>
</blockquote>
<blockquote>2) To provide a suitable low friction bearing surface,
since steel on steel is not good for friction.</blockquote>
<blockquote><br>
</blockquote>
<div>The image of the agraffe can be found at;</div>
<div><a class="moz-txt-link-freetext" href="http://www.overspianos.com.au/ove.agraffe.jpg">http://www.overspianos.com.au/ove.agraffe.jpg</a></div>
<div><br>
</div>
<div>These agraffes feature an internal-hole profile which looks
something like the hole of a doughnut, as a string termination
shape.
Provided that the string approach angle doesn't exceed 10
degrees, the
string will always have clearance with the agraffe body, and
will only
contact the agraffe at the 'internal doughnut'. I'm really
looking
forward to hearing the first of these in a month or so.</div>
<div><br>
</div>
<div>The first batch will be fitted to a model D rebuild we're
finishing off for Sydney Conservatorium of Music, and another
210 cm
grand piano we're rebuilding, with extensive modifications, for
sale.</div>
<div><br>
</div>
<div>I'm really looking forward to getting the 210 finished, since
it
will be fitted with the custom agraffes, a new capo and
counterbearing
system, comprising of a new V bar capo, and a V bar
counterbearing bar
25-30 mm behind the capo (both V bars are hardened and EN
plated).
Also included is a 6-note tenor bridge (all bichords) with the
agraffes relocated to preserve the hammer strike ratio, a new
bass
scale design, an action ratio revision and the inclusion of a
set bolt
at the bass-side-X, since it was left out of the original
instrument -
likely as a cost cutting measure. Overall, there won't be much
of the
original Young-Chang Steinway model B clone left in the piano.
It will
pretty much be our tonal character inside a 210 case (hence the
name
change to Overs-Beale). We're planning to sell it for around
A$60K
(FOB). A description of this piano, written before the rebuild
commenced, can be found at;</div>
<div><a class="moz-txt-link-freetext" href="http://www.overspianos.com.au/BG7.htm">http://www.overspianos.com.au/BG7.htm</a></div>
<div><br>
</div>
<div>A screen-shot which shows %-break scaling charts for a
Steinway
B, the original clone and our re-design can be found at;</div>
<div><a class="moz-txt-link-freetext" href="http://www.overspianos.com.au/7ftgrd.tens.snpsht.jpg">http://www.overspianos.com.au/7ftgrd.tens.snpsht.jpg</a></div>
<div><br>
</div>
<div>An image in the bottom RH corner of the screen-shot shows
overhead images of a Steinway B and the original Beale BG7 piano
before the rebuild started. The similarity in the scale is
obvious.
The Beale case is wider at the back, which is no advantage,
despite
the fact that the current crop of designers can't resist
widening the
back. Generally the change only results in the differing
distances of
the bridges from rim to be even worse than previously.</div>
<div><br>
</div>
<div>I'll be adding in-progress images of the new rebuild to the
website soon, in our 'pianos for sale' section.</div>
<div><br>
</div>
<div>Ron O.</div>
<div><br>
</div>
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<div><font color="#0000FF" size="+1"><b>OVERS PIANOS -
SYDNEY</b></font></div>
<div><font color="#000000"><i> </i></font><font color="#0000FF"><i>Grand
Piano Manufacturers</i></font></div>
<div><font color="#000000">_______________________</font></div>
<div><font color="#000000" size="-2"><br>
</font></div>
<div><font color="#000000">Web <a class="moz-txt-link-freetext" href="http://overspianos.com.au">http://overspianos.com.au</a></font></div>
<div><font color="#000000"><a class="moz-txt-link-freetext" href="mailto:ron@overspianos.com.au">mailto:ron@overspianos.com.au</a></font></div>
<div align="center"><font color="#000000">_______________________</font></div>
<div align="center"><font color="#000000"><br>
</font></div>
<div align="center"><font color="#0000FF" size="-1"><i>A web page
with
images of recent work and almost-audio-CD quality mp3 sound
files of
the Overs piano can be found at;</i></font></div>
<div align="center"><font color="#0000FF" size="-1"><i><a class="moz-txt-link-freetext" href="http://overspianos.com.au/more_info.htm">http://overspianos.com.au/more_info.htm</a></i></font></div>
<div align="center"><font color="#0000FF" size="-1"><i><br>
</i></font></div>
<div align="center"><font color="#0000FF" size="-1"><i>So put on
your
headphones, plug them into your freshly restarted computer
and sit
back to over 20 minutes of pure piano.</i></font></div>
<div align="center"><font color="#000000"> _______________________</font></div>
<div align="center"><font color="#000000"><br>
</font></div>
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