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<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>Hello,</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>Is not
roughening with a file adding thickness to the iron wire , not as much =
as with a
brass center pin but certainly a little ?</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>My
process involve the use of 2 medium files (with crossed lines) and the =
thickness
certainly grows, I am able to obtain sometime a "one tool does it all" =
while
controlling the thickness with a micrometer, but it is not really =
accurate, more
is the use of a center pin wire as a burnished.</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>I don't understand how you can obtain a tool that is =
at the
same time a reamer and a burnishes. </FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>With a
center wire (we buy these in 50 cm length) rolling between 2 files the =
size
grows from one to 2 sizes, depending of the files
used.</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>As
these clog and are to be roughened again the tool is changing size and =
strength
and I have to make new ones on a regular basis.</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>So I
have to develop a feel for the efficiency of the tool, if I do pinning =
regularly
I keep it, if I don't for some time it takes 10-15 pins to find the good =
method.</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>I am
very interested in your broaches, but the sizes seem to differ from the =
metric
sizes we are used too, so I should make some on metric wires
myself.</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>I've
been using piano strings for that, but they are not straight enough =
mostly, and
some sizes are not common.</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>How
large is the roughened part on your broaches ?</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>Thanks
in advance</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>Greetings</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=160013109-13042003><FONT face=Arial color=#0000ff =
size=2>Is</FONT></SPAN><SPAN class=160013109-13042003><FONT =
face=Arial
color=#0000ff size=2>aac OLEG</FONT></SPAN></DIV>
<DIV><SPAN class=160013109-13042003></SPAN><SPAN =
class=160013109-13042003><FONT
face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV> </DIV>
<P><FONT size=2>Isaac OLEG<BR><BR>Entertain et réparation de
pianos.<BR><BR>PianoTech<BR>17 rue de Choisy<BR>94400 VITRY sur
SEINE<BR>FRANCE<BR>tel : 033 01 47 18 06 98<BR>fax : 033 01 47 18 06 =
90<BR>cell:
06 60 42 58 77 </FONT></P>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Message d'origine-----<BR><B>De :</B>
pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]<B>De la =
part
de</B> Donald Mannino<BR><B>Envoyé :</B> dimanche 13 avril =
2003
05:48<BR><B>À :</B> Pianotech<BR><B>Objet :</B> Re: =
Broach roughness
- Was: Repinning flanges<BR><BR></FONT></DIV><FONT =
size=3>John,<BR><BR>I used
to do it with the edge surface of a large bastard file, roll the wire =
on the
workbench, changing the angle to randomize the marks in the =
wire.<BR><BR>I
believe Schaff's machinist rolls the wire on a coarse grinding wheel, =
but I am
not sure. The Schaff ones are usually =
perfect.<BR><BR>Don<BR><BR><BR>At
03:57 PM 4/11/2003 -0300, you wrote:<BR></FONT>
<BLOCKQUOTE class=cite cite="" type="cite"><FONT face=arial =
size=3><B>Hi
Don,</B></FONT><BR><FONT face=arial size=3><B>Would you =
enlighten us, on the
method used to make the roughness on the =
broaches?</B></FONT><BR><FONT
face=arial size=3><B>Thank you.</B></FONT><BR><FONT face=arial =
size=3><B>Regards,</B></FONT><BR>John M. Ross<BR>Windsor, Nova =
Scotia,
Canada<BR><A
href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</A>
<DL>
<DD>----- Original Message -----
<DD>From:</B> <A href="mailto:donmannino@attbi.com">Donald =
Mannino</A>
<DD>To:</B> <A href="mailto:pianotech@ptg.org">Pianotech</A>
<DD>Sent:</B> Friday, April 11, 2003 3:29 PM
<DD>Subject:</B> Re: Broach roughness - Was: Repinning =
flanges<BR><BR>
<DD>Clyde,<BR><BR>
<DD>You are right - the old APSCO broaches were really nasty, with =
the
rough area knurled and much too agressive. Hopefully Schaff =
threw
them all out when theybought APSCO, but I don't realyl know. =
The
rough area is supposed to be subtly rough, with something like the =
grit of
fine sandpaper, maybe 320 grit or finer. The point is that =
the felt
should not be chewed up when reaming, and the reaming area should =
not be
larger than the smooth area, or the smooth area would not do a =
good job of
burnishing the cloth.<BR><BR>
<DD>If the broach gets clogged up, the cloth has very likely been
lubricated with something that has become gummy. I run into =
this
sometimes, and it immediately throws up a red flag. If the =
cloth is
gummy and sticky, there's a very good chance that reaming and =
repinning is
not going to be a permanent solution. The gumminess will =
rear it's
ugly head again, and the action will go sluggish. In this =
case you
might consider cleaning all the bushings with naptha, then keeping =
a cloth
nearby to clean the broach occasionally.<BR><BR>
<DD>With clean dry bushing cloth, a quick tap on the edge of the =
workbench
is all that is needed to shake out any wool dust that has =
accumulated on
the broach. I have had broach sets that were used to do =
many, many
sets of action parts that kept working like new.<BR><BR>
<DD>Don Mannino<BR><BR>
<DD>At 06:45 AM 4/11/2003 -0400, you wrote:
<BLOCKQUOTE class=cite cite="" type="cite">
<DD>Friends,<BR><BR>
<DD>I discovered quite by accident at a PTG convention, when =
looking
over tools,
<DD>that the rough part of broaches can be quite =
different. I have
used the same
<DD>set for years, and the rough part is not rough enough to =
"clog
up." They
<DD>always worked fine for me.<BR><BR>
<DD>But I came across a set that was so rough that it looked to =
me like
they stood
<DD>a good chance of removing too much felt. I would be =
afraid to
use them unless
<DD>someone else looked at them and said, "Oh, yes, that's the =
way my
set is, and
<DD>they work fine." I'm not going to buy such a set just =
to try
it out.<BR><BR>
<DD>Regards,
<DD>Clyde<BR><BR>
<DD>David Love wrote:<BR><BR>
<DD>> In the process of repinning the action using broaches, =
I found
that the
<DD>> roughened part of the broach kept clogging with felt =
which
reduced it's
<DD>> cutting efficiency.<BR><BR>
<DD>_______________________________________________
<DD>pianotech list info: <A
href="https://www.moypiano.com/resources/#archives"
=
eudora="autourl">https://www.moypiano.com/resources/#archives</A>
=
</DD></BLOCKQUOTE></DD></DL></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>