ncworkshops.com
•
[email protected] PO BOX 980
•
North Conway, NH
•
03860
The D
og
-B
one
blade holder was developed to safely
and consistently re-grind the bevel on the spokeshave
blades. The best results are achieved on a low speed
grinder with a wheel 8″ in diameter or greater. Frequent
cooling of the blade is recommended if the grinder is not
self-whetting. A bracket supported sharpening system
is recommended. If your bench grinder does not have
a bracket supported system, after market systems are
available or a shop-made system can be fashioned. For
illustrative purposes, the photos below show the Tormek
sharpener with the square edge jig
(A)
and the Tormek
bracket system adapted to an 8″ bench grinder
(B).
(1)
Attach the spokeshave blade to the
D
og
-B
one
then insert this assembly into the sharpening jig.
Establish the bevel angle relative to the grinding
wheel. The best point of wheel contact is midway
on the bevel. Make sure the bevel tracks parallel
along its length
(C).
(2)
The re-grind will result in a hollow ground bevel.
If slight unground areas remain on either end
of the cutting edge or near the cutting edge,
do not chase them. On small blades, do stay shy
of the edge. This helps preserve the blade depth.
Over grinding wastes good blade stock and the
unground areas will probably be caught on future
on future re-grinds
(D).
(3)
Light honing of
this hollow ground
bevel on a block
or stone creates
an exquisite edge
(E).
(4)
Hollow grinding the face: If this is a desired detail or
if the blade face has been “dubbed off” (loss of
flatness toward the edge), the face of the blade
can also be hollow ground with the
D
o g
-B
o n e
.
A large diameter wheel is required and grinding
should be halted
within 1/16
"
–1/8
"
of the edge
(F).
The
face can now
be lapped / honed
on a stone.
ncworkshops.com
•
[email protected] PO BOX 980
•
North Conway, NH
•
03860
D
F
E
A
B
C
W I T H
GRINDER
