Bosch GCM12SD Manual Del Usuario página 45

BM 2610007877 08-10:BM 2610007877 08-10.qxp 8/24/10 1:05 PM Page 45
Base molding can be cut vertical against fence or
flat on the table. The maximum size that can be
vertical on the fence is 6-1/2", flat on table is
13-1/2".
Follow the table for helpful hints on cutting base
molding for corners that have 90° angles.
LOCATION OF
MOLDING
ON SAW
Bevel Angle
Molding Piece Being Cut
Inside
corner of wall
Outside
corner of wall
Crown molding
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 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."
Saw Operations
Cutting Base Molding
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
Cutting Crown Molding
cuts must be positioned
detents at 33.9°. These
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 Keep left
side of cut side of cut
Left at 45°
Bottom Bottom against
against table
Keep right Keep right
side of cut side of cut
See also pages 46 & 47 for miter and bevel angle
charts for cutting
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.
The optional Bosch
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.
45.
Back of molding is flat
on the table
Bevel = 45°
0° 0°
Bottom
fence against fence
Keep left
side of cut
0° 0°
Top against
fence fence
Keep right
side of cut
crown molding that has
DAF220K MiterFinder