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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=oleg-i@wanadoo.fr href="mailto:oleg-i@wanadoo.fr">Isaac =
OLEG</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> November 08, 2002 2:00 =
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Bridge Notching =
Trouble--
Terry Farrells question</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2>Never used the mthod myself but I've seen notchning done with =
a sanding
machine (small band , called electric file)</FONT></SPAN></DIV>
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2></FONT></SPAN> </DIV></BLOCKQUOTE>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2>I've done several bridges that way but went =
back to the
chisel. I missed the sharp edges and the control of a sharp blade. Now, =
of
course, my sharp chisels rotate at about 5,000 rpm.</FONT></SPAN></DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2></FONT></SPAN> </DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px">
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2>I believe the chisel I use is a carver's chisel, it is =
convex on
its twoo sides the same amount .</FONT></SPAN></DIV></BLOCKQUOTE>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT size=2><FONT
face="Comic Sans MS" color=#000080>When I do use a chisel it is a =
Japanese
paring chisel. The blade is about 25 mm wide and very thin. About 5 mm?
Certainly no more than that. It (the blade) used to be about 200 mm =
long. Now,
from about 1,273,549 sharpenings, it's down to about 100mm long. The =
handel is
also quite long, about 250 mm or so. The blade is of two metals--a soft =
iron
backing bonded to an extremely hard cutting edge. The closest to my =
chisel that
I can find in the current Japan Woodworker catalog is the =
#14.309.24 on
page 35 (see </FONT><A
href="http://www.thejapanwoodworkercatalog.com/c/g8/p/035f.html"><FONT =
face="Comic Sans MS"
color=#000080>http://www.thejapanwoodworkercatalog.com/c/g8/p/035f.html=
</FONT></A><FONT
face="Comic Sans MS" color=#000080>). I the blade/handle proportions =
are the
same it appears that the blade of the current offering is about as long =
as mine
is now. It is also about 2/3 the price that I paid in the mid-70s. Other =
than
for the occasional sharpening it is =
unmodified.</FONT></FONT></SPAN></DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2><A =
href="http://www.thejapanwoodworkercatalog.com/c/g8/p/035f.html"><FONT =
face="Comic Sans MS" =
color=#000080></FONT></A></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px">
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff size=2>For
the vertical side of the notch I use a large chisel modified to follow =
the
curve, a rap of this one first, and the rounded chisel shave the notch =
at the
speed I want, because the curved chisel allow to do very small shaves =
ar
bigger one depending of the angle it is =
driven.</FONT></SPAN></DIV></BLOCKQUOTE>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT size=2><FONT
face="Comic Sans MS" color=#000080>For the vertical side of the =
notch I use a
plane iron similar to the Hock # 53.175.1 shown on page 15 of the =
current Japan
Woodworker catalog (</FONT><A
href="http://www.thejapanwoodworkercatalog.com/c/g8/p/015f.html"><FONT =
face="Comic Sans MS"
color=#000080>http://www.thejapanwoodworkercatalog.com/c/g8/p/015f.html=
</FONT></A><FONT
face="Comic Sans MS" color=#000080>).</FONT></FONT></SPAN></DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2></FONT></SPAN> </DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px">
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff size=2>All
these perfecly cutting (with a water stone and japanese stones for =
finishing)
.</FONT></SPAN></DIV>
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff size=2>I
believe you have Arkansas stones in the USA, or are they coming from =
another
place on earth ?</FONT></SPAN></DIV>
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=954302209-08112002><FONT face=Arial =
color=#0000ff size=2>I
like the Japanese water stones but a truing block is necessary because =
they
are generally soft.</FONT></SPAN></DIV></BLOCKQUOTE>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2>I'm fundamentally lazy. I use a Makita powered =
water wheel.
See <A
href="http://www.makita.com/tools_Item_View.asp?id=61">http://www.mak=
ita.com/tools_Item_View.asp?id=61</A>. </FONT></SPAN><SPAN
class=954302209-08112002><FONT face="Comic Sans MS" color=#000080 =
size=2>Very
fast and to a mirror finish.</FONT></SPAN></DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2></FONT></SPAN> </DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2>Regards,</FONT></SPAN></DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2></FONT></SPAN> </DIV>
<DIV dir=ltr><SPAN class=954302209-08112002><FONT face="Comic Sans =
MS"
color=#000080 size=2>Del</FONT></SPAN></DIV>
<DIV dir=ltr><FONT lang=0 style="BACKGROUND-COLOR: #ffffff" =
size=2
FAMILY="SERIF"><FONT color=#000080><FONT face="Comic Sans =
MS"><FONT
size=3></FONT><BR></FONT></FONT> </DIV></FONT></BODY></HTML>