Bosch GCM18V-12GDC Operating/Safety Instructions Manual page 56

Assumptions: Molding is milled consistently. Corner is exactly 90°.
Note: Always place top
edge against fence
Inside Corner -
Left end
Use the left end of the cut
Right end
Use the right end of the cut
Outside Corner -
Left end
Use the left end of the cut
Right end
Use the right end of the cut
Inside
Corner
56
Saw Operations
Miter and Bevel Settings for Standard Crown Molding Cuts
(With Molding Flat on Table)
Molding Spring Angle 38°
Miter (Table)
Setting
31.6° Right
31.6° Left
31.6° Left
31.6° Right
Outside
Corner
Ceiling
52°
38°
38/52° Crown
Molding
38° Spring Angle
Molding Spring Angle 45°
Bevel (Tilt) Miter (Table)
Setting Setting
33.9° Left 35.3° Right
33.9° Right 35.3° Left
33.9° Right 35.3° Left
33.9° Left 35.3° Right
Fence
Top of Molding
Against Fence
Table
Ceiling
45°
45°
45/45° Crown
Molding
45° Spring Angle
Bevel (Tilt)
Setting
30° Left
30° Right
30° Right
30° Left