Craftsman 137.212370 - Manual (Page 22)

CUTTING BASE MOLDING (FIG. DD)
Base moldings and many other moldings can be cut on
a compound miter saw. The setup of the saw depends
on molding characteristics and applications, as shown.
Perform practice cuts on scrap material. To achieve best
results;
Fig. EE
1
,
3.
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
to avoid marks.
Reduce splintering by taping the cut area prior to
making cut. Mark cut line directly on the tape.
Splintering typically happens due to wrong blade
application and thinness of the material.
Fig. DD
NOTE: Always perform a dry run cut so you can
determine if the operation being attempted is possible
before power is applied to the saw,
CUTTING CROWN MOLDING (FIG. EE, FF)
Your compound miter saw is suited for 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 comer, lay the molding with its broad back
surface flat on the saw table.
When setting the bevel and miter angles for compound
miters, remember that the settings are interdependent ™
changing one changes the other, as well.
Bevel/Miter Settings
Fig. FF
Settings for standard crown molding lying flat on
compound miter saw table
Inside Corner
Compound Cut Crown Moldings
NOTE: The chart below references a compound
cut for crown molding ONLY WHEN THE ANGLE
BETWEEN THE WALLS EQUALS 90°.
KEY
BEVEL
SETTING
I« ITER
SETTING
TYPE OF CUT
Inside corner-Left side
IL 33.9° 31,6°
Right
1. Position top of molding against fence,
2. Miter table set at RIGHT 31.6°.
3. LEFT side is finished piece.
Inside Corner-Right side
IR 33.9° 31,6°
Left
1. Position bottom of molding against
fence.
2. Miter tabie set at LEFT 31,6°.
3. LEFT side is finished piece.
Outside corner-Left side
OL OO QO
OO. S3 31,6°
Lsft
1. Position bottom of molding against
fence,
2. Miter table set at LEFT 31.6°.
3. RIGHT side is finished piece.
Outside Corner-Right side
OR 33.9° 31.6°
Right
1. Position top of molding against fence,
2. Miter tab! e set at R1GHT 31.6°.
3. RIGHT side is finished piece.
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