38
▶ Cutting Crown Molding
Crown molding cuts must be positioned properly
to fit exactly.
There are two ways to cut crown molding: flat on
table or angled to table and fence.
Crown molding’s “spring angle” is the angle
between the back of the molding and the bottom
flat surface that fits against the wall.
This miter saw has special miter callouts at 31.6°
and bevel callouts at 33.9°. These callouts allow
you to easily position most crown molding flat on
the table and make precise cuts for 90° corners.
NOTE: These callouts cannot be used with 45°
“spring angle” crown molding. These callouts are
only for use with crown molding that has a 38°
“spring angle.”
See also pages 39 and 40 for miter and bevel angle
charts for cutting crown molding that has 38°
spring angles. Each chart lists the exact miter and
bevel settings required for a wide range of corner
angles.
Even though these angles are standards, most
rooms do not have angles of exactly 90°; therefore,
you will need to fine-tune your settings.
The
optional
Bosch
GAM22MF
MiterFinder
Digital Anglefinder/Protractor measures spring
angles and corner angles, then automatically
determines the exact miter and bevel settings
necessary to make each crown molding cut fit
perfectly.
▶ Cutting Base Molding
Base molding can be cut vertical against fence or
flat on the table. The maximum size that can be
vertical on the fence is 2-3/4", flat on table is 9".
Cutting base molding can be done either as a chop
cut or a slide cut depending on the size of the
workpiece.
Follow the table for helpful hints on cutting base
molding for corners that have 90° angles.
Saw Operations
BASE MOLDING CUTTING INSTRUCTIONS
LOCATION OF MOLDING
ON SAW
Molding in Vertical Position:
Back of molding is against
the fence (up to 2-3/4")
Molding in Horizontal
Position: Back of molding is flat
on the table (up to 9")
Bevel Angle
Bevel = 0º
Bevel = 45º
Molding piece being cut
To left of
corner
To right of
corner
To left of
corner
To right of
corner
Inside
corner of wall
Miter Angle
Left at 45º
Right at 45º
0º
0º
Position
of molding
on saw
Bottom
against table
Bottom
against table
Top against
fence
Bottom
against fence
Finished side
Keep left
side of cut
Keep right
side of cut
Keep left
side of cut
Keep left
side of cut
Outside
corner of wall
Miter Angle
Right at 45º
Left at 45º
0º
0º
Position
of molding
on saw
Bottom
against table
Bottom
against table
Bottom
against fence
Top against
fence
Finished side
Keep right
side of cut
Keep right
side of cut
Keep right
side of cut
Keep right
side of cut
Le
ft
Right
Left
R
ig
h
t
2610051914.qxp_GCM18V-08 6/24/19 1:56 PM Page 38
