Craftsman 137.21194 - Manual (Page 34)

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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.
When setting the bevel and miter
angles for compound miters, remember
that the settings are interdependent;
changing one changes the other, as
well.
Fig. GG
Bevel/Miter Settings
Fig. HH
Settings for standard crown molding
lying flat on compound miter saw
table
NOTE: The chart below references
a compound cut for crown molding
ONLY WHEN THE ANGLE BETWEEN
THE WALLS EQUALS 90°.
2. Reduce splintering by taping the cut
area prior to making the cut. Mark
the cut line directly on the tape.
3. Splintering typically happens due to
an incorrect blade application and
thinness of the material.
Fig. FF
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.
GG, HH)
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
F
e
n
c
e
Miter saw table
Compound cut crown moldings
Inside corner
Outside corner
OR
OL
IR
IL WARNING
!
F
e
n
c
e
Miter saw table
miter at 45 0 ,
bevel at 0 0
miter at 0 0 , bevel
at 45 0
F
e
n
c
e
Miter saw table
CUTTING BASE MOLDING (FIG. FF)
Base moldings and many other
moldings can be cut on a compound
miter saw. The setup of the saw
depends on molding characteristics
and application, as shown. Perform
practice cuts on scrap material to
achieve best results:
1. Always make sure moldings rest
firmly against fence and table. Use
hold-down, crown molding vise
or C-clamps, whenever possible,
and place tape on the area being
clamped to avoid marks.