Bosch 5312 - Cuttingbasemolding; Cutting Crown Molding

CuttingBaseMolding
•Basemoldingcanbecutverticalagainstfence •Followthetableforhelpfulhintsoncuttingbase
orfiatonthetable.Themaximumsizethatcan moldingforcornersthathave90°angles.
beverticalonthefenceis4-1/4",fiatontableis •Cuttingbasemoldingcanbedoneeitherasa
10-1/4". chopcutoraslidecutdependingonthesizeof
theworkpiece.
LOCATIONOF
MOLDING
ONSAW
BevelAngle
BASE MOLDING CUTTING iNSTRUCTiONS
Molding in Vertical Position: Molding in Horizontal Position:
Back of molding is Back of molding is flat
against the fence on the table
Bevel = 0° Bevel = 45°
Molding Piece Being Cut
To left of
corner
To right of
corner
To left of
corner
To right of
corner
inside
corner of wall
Outside
corner of wall
Miter Angle
Position of
molding on Saw
Finished
side
Miter Angle
Left at 45 °
Bottom
against table
Keep left
side of cut
Right at 45 °
Right at 45°
Bottom
against table
Keep right
side of cut
Left at 45°
0 o
Top against
fence
Keep left
side of cut
0o
0 o
Bottom
against fence
Keep left
side of cut
0 o
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
Cutting Crown Molding
• Crown molding must be cuts must be positioned
properly to fit exactly.
• There are two ways to cut crown molding: fiat on
table or angled to table and fence.
• Crown molding's "spring angle" is the angle be-
tween the back of the molding and the bottom fiat
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
moldings fiat on the table and make precise cuts
for 90° corners. (These detents are only for use
with crown moldings that have a 38° "spring
angle".) NOTE: These detents cannot be
used with 45° crown molding.
• See also pages 29 & 30 for miter and bevel angle
charts for cutting crown moldings that have 38°
and 45° spring angles (and the material is laid fiat
on the miter saw base). 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°, there-
fore, you will need to fine tune your settings.
The optional Bosch DAF220K MiterFinder
Digital Anglefinder/Protractor measures spring
angles and corner angles, then automatically de-
termines the exact miter and bevel settings
necessary to make each crown molding cut fit
perfectly.
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