Bosch Power Tools GCM12SD Saw User Manual


 
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LOCATION OF Molding in Vertical Position: Molding in Horizontal Position:
MOLDING Back of molding is Back of molding is flat
ON SAW against the fence on the table
Bevel Angle Bevel = 0° Bevel = 45°
Molding Piece Being Cut To left of corner To right of corner To left of corner To right of corner
;@612 Miter Angle Left at 45° Right at 45°
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Position of Bottom Bottom Top against Bottom
molding on saw 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
#BA@612 Miter Angle Right at 45° Left at 45°
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Position of Bottom Bottom Bottom against Top against
molding on saw 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
Saw Operations
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l 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".
l Follow the table for helpful hints on cutting base
molding for corners that have 90° angles.
l Cutting base molding can be done either as a chop
cut or a slide cut depending on the size of the
workpiece.
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 46 & 47 for miter and bevel angle
charts for cutting crown molding that 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.
The optional Bosch DAF220K 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.
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