Craftsman 137.212920 Owner's Manual page 14

AUXILIARY WOOD FENCE (FIG. HH) Fig. KK Bevel/Miter Settings for standard crown molding lying
flat on compound miter saw table (Fig. MM)
To avoid injury from materials being thrown, always
unplug saw to avoid accidental starting and remove
small pieces of material from the control arm cavity.
The table insert may be removed for this purpose, but
always reattach table insert prior to performing a cutting
operation.
TO MAKE REPETITIVE CUTS
When making multiple or repetitive cuts that result in
cut-off pieces of one inch or less, it is possible for the saw
blade to catch the cut-off piece and throw it out of the saw
or into the blade guard and housing, possibly causing
damage or injury. To minimize this an auxiliary wood fence
can be mounted to your saw.
1. Holes (1) are provided in the saw fence to attach an
auxiliary wood fence (2). This fence is constructed of
straight wood approximately 1/2" thick by 2-1/2" high
by 20-1/2" long.
2. Attach the wood fence securely and make a full depth
cut to make a blade slot.
3. Check for interference between the wood fence and
the lower blade guard. Adjust if necessary.
NOTE: This auxiliary fence is used only with the saw blade
in the 0 ° bevel position (90 ° to the table). The auxiliary
wood fence must be removed when bevel cutting.
slot
2
1
CUTTING A DIMENSIONAL 4 X 4 (3-1/2" X 3-1/2")
WITH ONE CUT (FIG. II)
A dimensional 4 x 4 may be cut in half with one cut by
attaching an auxiliary wood fence of 7/8" thick. See
AUXILIARY WOOD FENCE Section.
Fig. II
Auxiliary fence
Miter saw fence xkkXX forkpiece
_3"1/2"
J
Miter saw table
VERTICAL MITER CUTTING (FIG. JJ)
To make a miter cut in a 2 x 4 workpiece (1-5/8" x 3-1/2")
in tile vertical position (on edge), a spacer, such as the
auxiliary wood fence described in the AUXILIARY WOOD
FENCE Section is required.
Fig. JJ
CUTTING BASE MOLDING (FIG. KK)
Base moldings and many other moldings can be cut on a
sliding compound miter saw. The set up of the saw
depends on molding characteristics and application, as
shown. Perform practice cuts on scrap material to achieve
best results:
1. Adjust the auxiliary fence, if necessary, according to
the angle being cut.
2. Always make sure moldings rest firmly against fence
and table. Use hold down or C-clamps, whenever
possible, and place tape on the area being clamped.
3. Reduce splintering by taping the cut area prior to
making a cut. Mark the cutline directly on the tape.
4. Splintering typically happens due to wrong blade
application and the thinness of the material.
1
Miter saw table I
Miter at 45°, bevel at 0°
FI
el
nl
cl
Miter saw table
Miter at 0°, bevel at 450
NOTE: The slide mechanism and the blade diameter of
the 12" sliding compound miter saw limit the capability
of cutting a particular application. Always perform a dry
run cut so you can determine if the procedure being
attempted is possible before power is applied to the saw.
CUTTING CROWN MOLDING (FIG, LL)
Your sliding compound miter saw is suited to the difficult
task of cutting crown molding. To fit properly, crown
molding must be compound-mitered with extreme
accuracy. The two surfaces on a piece of crown molding
that fit flat against the ceiling and wall are at angles that,
when added together equal exactly 90 °.
Most crown molding has a top rear angle (the section that
fits flat against the ceiling) of 52 ° and a bottom rear angle
(the section that fits flat against the wall) of 38 °.
In order to accurately cut crown molding for a 90 ° inside or
outside corner, lay the molding with its broad back surface
flat on the saw table. Adjust the auxiliary fence for the
crown molding compound angles.
When setting the bevel and miter angles for compound
miters, remember that the settings are interdependent;
changing one changes the other. Also, keep in mind that
the angles for crown molding are very precise and difficult
to set exactly. Since it is very easy for these angles to shift
slightly, all settings should first be tested on scrap molding.
Fig, LL
FI
e I
n I
c I
e I
Miter saw table
Workpiece lying flat
J
Fig. MiVi
Inside corner
OR
\
Outside corner
Compound cut crown moldings
KEY BEVEL MITER
SETTINGSETTING
TYPEOFCUT
Inside corner- _Left s ide
IL 33.90 31.6 ° 1. Position topof molding against f ence.
2. Miter lableset at RIGHT 31.6 °.
Right 3, LEFTsideisfinishedpiece.
tR 33.90 31.60
Left
Inside corner- _Right side
t. Position bottomof molding against f ence.
2. Mitertable set at LEFT31.6 °.
3. LEFTsideis finished piece.
Outsidecorner - _Left side
OL 33.90 31.6 ° 1. Position bottom of molding against f ence.
2. Mitertablesetat LEFT31.60 .
Left
3. RIGHT sideis finished piece.
Outsidecorner- Right side
OR 33.90 31.6 ° 1. Position top ofmoldingagainst f ence.
2. Mitertableset at RIGHT 31.60 .
Righl 3. RIGHT sideisfinished piece.