Bosch 3915 - Manual (Page 27)

BASE MOLDING CUTTING INSTRUCTIONS
SETTINGS Vertical Position Horizontal Position
/ Back of molding is Back of molding is flat
INSTRUCTIONS against the fence on the table
Bevel Angle 0° 45°
Molding position Left Side Right Side Left Side Right Side
Inside Miter Angle Left at 45° Right at 45° 0° 0°
corner of wall
Molding Bottom Bottom Top against Bottom
position against table against table fence against fence
Finished Keep left Keep right Keep left Keep left
side side of cut side of cut side of cut side of cut
Outside Miter Angle Right at 45° Left at 45° 0° 0°
corner of wall
Molding Bottom Bottom Bottom against Top against
position against table against table fence fence
Finished Keep left Keep right Keep right Keep right
side side of cut side of cut side of cut side of cut
27.
— Crown molding must be cut exactly to fit properly.
— There are two ways to cut crown molding:
flat on table or
angled to table and fence.
— Your miter saw has special miter detents of
31.6° left and right and a bevel detent of 33.9°
for cutting crown molding flat on the table.
— These special detents angles have been
designed into your compound miter saw for the
standard crown molding used in the United
States with the following angles:
52° between the back of the molding and the
top flat surface that fits against the wall.
38° between the back of the molding and the
bottom flat surface that fits against the wall.
NOTE: These detents cannot be used with 45° crown
molding.
— Even though these angles are standards, most
rooms do not have angles of exactly 90°, there-
fore, you will need to fine tune your settings
using the detent override.
— Cutting crown molding flat on the table can be
done either as a chop cut or a slide cut depend-
ing on the width of the workpiece.
Saw Operations
— Base molding can be cut vertical against fence
or flat on the table.
— Follow the table for helpful hints on cutting base
molding.
— Cutting base molding can be done either as a
chop cut or a slide cut depending on the width of
the workpiece.
Cutting Base Molding
Cutting Crown Molding
Left
Right
Right
Left