Kobalt SM1850LW User Manual page 31

CUTTING BASE MOULDING (FIG. 34)
Base mouldings and many other mouldings can
be cut on a compound miter saw. The setup of
the saw depends on moulding characteristics and
applications, as shown. Perform practice cuts on
scrap material to achieve best results:
● Always make sure mouldings rest firmly against
the 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.
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 MOULDING (FIG. 35, 36)
Your compound miter saw is suited for the difficult
task of cutting crown moulding. To fit properly, crown
moulding must be compound-mitered with extreme
accuracy. The two surfaces on a piece of crown
moulding that fit flat against the ceiling and wall are at
angles that, when added together, equal exactly 90°.
Most crown moulding 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 moulding for a 90°
inside or outside corner, lay the moulding with its
broad back surface flat on the saw table.
When setting the bevel and miter angles for compound
miters, remember the settings are interdependent;
changing one changes the other, as well.
NOTE: The chart on the next page references a
compound cut for crown moulding ONLY WHEN
THE ANGLE BETWEEN THE WALLS EQUALS 90°.
34
F
Workpiece
e
n
c
e
Miter saw table
Miter at 45°,
bevel at 0°
35
F
e
n
c
e
Miter saw table
36
Settings for standard crown moulding
lying flat on compound miter saw table
Inside corner
Compound cut crown moulding
see next page for settings chart
31
F
e
Workpiece
n
c
e
Miter saw table
Miter at 0°,
bevel at 45°
F
e
Workpiece
n
Workpiece
c
e
Miter saw table
Bevel/Miter Settings
OR
OL
IR
IL
Outside corner