Magnetic Chisel Rack.pdf
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magnetic
chisel rack
© 2009 August Home Publishing Co.
W
eekend
P
roject
M
agnetic
c
hisel
r
ack
I’ve never been very happy with the
chisel rack that has hung in my shop
for years. The chisels simply dangle
loosely in the rack, occasionally
knocking against one another. And
nothing protects the edges of the
blades from damage.
This chisel rack is remarkably
different. For one thing, the chisels
all stand straight up, like a row of
soldiers at attention. And the edges
of the chisels are protected by a
shallow, V-shaped trough, where
they are out of harm’s way.
But the thing that’s really amazing
about this chisel rack is what you
don’t see. When you look closely
at the rack, there doesn’t appear to
be anything holding the chisels up.
The “secret” is magnets. Behind
each chisel, sandwiched between
the two plates of the rack, is a wafer-
like, rare-earth magnet. These pow-
erful magnets are strong enough to
hold even the largest chisel in place.
And yet, when you want to remove a
chisel from the rack, all you have to
do is pull it straight out.
END VIEW
(CROSS SECTION)
BACK PLATE
(
#/4
" x 4 - 11
!/2"
)
1
FRONT PLATE
(
#/4
" x 3
!/2"
- 11
"
)
C
A
WALL
RARE-EARTH
MAGNET HOLDS
CHISEL IN PLACE
C
MAGNET
A
B
#/16"
-DIA.
SHANK
HOLE
-DIA.,
-DEEP
COUNTER-
BORE
#/8"
!/4"
SAND
SLIGHT
CHAMFER
ON EDGES
#/4"
-DIA.
RARE-EARTH
MAGNET
TOP VIEW
(CROSS SECTION)
a.
B
CHISEL REST
(
!/8
" x
%/8"
- 11
"
)
TIP OF CHISEL
FITS IN GAP
CREATED BY
CHISEL REST
TRIM ENDS
AFTER ASSEMBLY
1
www.Woodsmith.com
© 2009 August Home Publishing Co. All Rights Reser ved.
2
3
DRILL -DEEP HOLE CENTERED
ON THE WIDTH OF EACH DADO
!/8"
FIRST:
LOCATE
CENTER OF
EACH DADO
#/4"-DIA.
FORSTNER
BIT
START WITH
AN OVERSIZED
BLANK
a.
a.
NOTE:
EACH
DADO IS WIDER
THAN CHISEL
FENCE
!/8"
NOTE:
IF POINT OF
FORSTNER BIT BREAKS
INTO DADO, IT CAN BE
FILLED WITH WOOD PUTTY
SECOND:
MARK WIDTH OF EACH
DADO AND CUT
1
!/8
b.
TRIM WASTE AFTER
CUTTING DADOES
2
2
2
2
#/4
!/2
1
!/8
1
!/8
1
!/8
1
&/8
1
!/4
%/8
1
&/16
!/2
1
(/16
#/8
11
FRONT PLATE DETAIL
There are only three pieces to this
chisel rack. In fact, it’s a great project
to use up some of those scrap wood
pieces that you have stashed away.
I started by making the front plate.
The final length of this piece will
depend on the number and widths
of your chisels, as shown in Figure
2b. But I started with an extra-long
blank. Then I cut the dadoes
that
will hold the chisels (Figure 2).
Each dado is sized so it’s
1
⁄
8
" wider
than the chisel it will hold. And the
dadoes are positioned two inches on
center so that all the handles will be
evenly spaced when the chisels are
placed in the rack.
After cutting the dadoes, I sanded
a small chamfer on the inside edges
of each opening, just like you see in
Figures 1 and 1a. Then the ends of
the front plate can be trimmed off
1
1
⁄
8
" from the edge of the nearest
dado, as shown in Figure 2b.
The rare-earth magnets will be
housed in shallow counterbores on
the back of the front plate. These
recesses are created with a Forstner
bit on the drill press. Just drill a
shallow hole centered over the back
of each dado, as you see in Figure
3. The diameter and depth of the
holes should match the diameter
and thickness of the magnets.
With all the holes drilled, the next
step is to chamfer the edges of the
front plate on a router table. You can
see this being done in Figures 4 and
4a. Because of the dadoes cut in the
plate, you can’t rely on the bearing
alone to guide the bit when making
the chamfer. So you’ll want to use a
fence on your router table as well.
Chisel Rest.
Although the magnets
will hold the chisels in the rack, I
added a narrow strip of wood to the
front plate to serve as a stop or rest
for the chisels. When you place a
chisel in the rack, the rest contacts
the bevel of the chisel and pins it to
the front plate of the rack.
The chisel rest is just a narrow
strip of stock. It fits into an angled
saw kerf cut into the front plate. To
make this kerf, simply tilt your saw
blade 45° (Figure 5).
After making the kerf, the rest
can be glued in place. Before you
move on to making the back plate,
however, there is just one more
detail to take care of. Using a sharp
chisel, trim the ends of the rest
flush with the chamfer on the ends
of the front plate, refer to Figure 1.
4
5
PUSH
BLOCK
PUSH
BLOCK
FENCE
TILT BLADE
45°
ROUT
ENDS FIRST
ROUT
CHAMFER ON
OUTER EDGES OF
FRONT SIDE ONLY
!/8"
CUT KERF
DEEP
&/16"
END VIEW
a.
END VIEW
a.
!/2
45°
&/16
!/8
2
www.Woodsmith.com
© 2009 August Home Publishing Co. All Rights Reser ved.
Back & assembly
6
At this point, you have the most dif-
ficult part of making the chisel rack
out of the way. All that’s left now is
to add a back and the magnets, and
then hang the rack up.
The back plate is made from a
piece of
3
⁄
4
"-thick stock, as shown in
Figure 6. (I used a different species
of wood to contrast with the front
plate.) After cutting the back plate to
size, a chamfer is routed all around
the front. This chamfer is the same
size as the one you routed earlier on
the front plate (
1
⁄
8
").
Assembly.
Before gluing the two
plates together, insert a rare-earth
magnet into each recess on the back
of the front plate. The magnets will
be trapped between the two plates,
so you don’t have to worry about
gluing them in place.
Gluing the two plates together
can be tricky. If you try to clamp
them together, the glue will make
them slip around like they’re on
ice. So before I applied the glue,
FRONT
PLATE
a.
ALIGNMENT
BRAD
BACK
PLATE
MOUNTING
SCREW
#/4"
-DIA.
RARE-EARTH
MAGNET
{
Rare-Earth
Magnets.
Roughly
the size of a nickel,
these rare-earth
magnets have
incredible holding
power. You can look
for them at your
local hardware store
or order them from
LeeValley.com.
FRONT
PLATE
C
BACK PLATE
CHISEL
REST
(
#/4"
x 4
"
- 11
!/2"
)
I drove some brads into the front
plate, leaving about
1
⁄
8
" of each brad
sticking out. Then I snipped off the
heads of the brads (Figure 6). When
you clamp the plates together, the
brads will bite into the back plate and
prevent the two pieces from slipping.
mounting the RACk.
The easiest
way to mount the chisel rack is to
screw it directly to the wall. Just
drill a mounting hole at each end, as
shown in Figures 1a and 6a. Once
the rack is attached to the wall, you
can set your chisels in place.
non-magnetic chisel rack
You don’t have to buy magnets to be
able to build this chisel rack. Here’s
an alternate version that is identical
to the rack above, except this one
uses a retaining strip instead of mag-
nets to hold the chisels in place, as
you can see in the photo at right.
All you have to do is cut a
1
⁄
4
" x
1
⁄
8
" groove across the front plate, as
shown below. Then glue a retaining
strip into the groove. Use a chisel
to trim the ends of the retaining
strip flush with the chamfer on the
ends of the front plate.
BACK PLATE
RETAINING STRIP
(
#/4"
x 4
"
- 11
!/2"
)
(
!/8"
x
!/4"
- 11
"
)
C
D
A
FRONT PLATE
(
#/4"
x 3
!/2"
- 11
"
)
B
CHISEL REST
(
!/8"
x
%/8"
- 11
"
)
3
www.Woodsmith.com
© 2009 August Home Publishing Co. All Rights Reser ved.
Plik z chomika:
aramita
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