Cutting Base Molding; Cutting Crown Molding - Bosch CM10GD Operating/Safety Instructions Manual

2610051885.qxp_CM10GD 12/3/18 8:49 AM Page 50

▶ 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
5-1/2", flat on table is 12-1/2".
LOCATION OF
MOLDING
ON SAW
Bevel Angle
Molding Piece Being Cut
Inside
corner of wall
Outside
corner of wall

▶ 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 detents at
31.6° and bevel detents at 33.9°. These
detents allow you to easily position most
crown molding flat on the table and make
precise cuts for 90° corners. NOTE: These
detents cannot be used with 45° crown
molding. These detents are only for use with
crown molding that has a 38° "spring angle."
See also pages 51 and 53 for miter and bevel
angle charts for cutting crown molding that
Saw Operations
BASE MOLDING CUTTING INSTRUCTIONS
Molding in Vertical Position:
Back of molding is
against the fence
To left of corner To right of corner To left of corner To right of corner
Miter Angle Left at 45°
Position of Bottom
molding on saw against table
Finished Keep left
side side of cut
Miter Angle Right at 45°
Position of Bottom
molding on saw against table
Finished Keep left
side side of cut
• Follow the table for helpful hints on cutting
base molding for corners that have 90°
angles.
• Cutting base molding can be done either as
a chop cut or a slide cut depending on the
size of the workpiece.
Molding in Horizontal Position:
Bevel = 0°
Right at 45°
Bottom Top against
against table
Keep right
side of cut side of cut
Left at 45°
Bottom Bottom against
against table
Keep right Keep right
side of cut side of cut
has 38° and 45° 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.
GAM 220 MF and GAM 270 MFL Digital Angle
Finder/ Compound
Protractor/ Level measures spring angles and
corner angles, then automatically determines
the exact miter and bevel settings necessary
to make each crown molding cut fit perfectly.
50
Back of molding is flat
on the table
Bevel = 45°
0° 0°
Bottom
fence against fence
Keep left Keep left
side of cut
0° 0°
Top against
fence fence
Keep right
side of cut
Cut Calculator /