Use And Care Manual

Page 25
CUTTING CROWN MOULDING
(FIG.19)
Your miter saw is ideal for cutting crown
molding. To fit properly, crown molding
must be compound-mitered with extreme
accuracy. To fit flat against the ceiling and
wall, the sum of the angles of the crown
molding’s two connecting surfaces must
equal 90°.
When setting the bevel and miter angles for
compound miter cuts, remember that the
settings are interdependent; changing one
also changes the other.
Keep in mind that, because it is very easy
for the angles of crown molding to shift
slightly, all settings should be tested on
scrap molding. Also, most walls do not have
angles of precisely 90°; therefore, you will
need to fine-tune your settings.
When cutting crown molding, the bevel
angle should be set at 33.9°, and the miter
angle should be set at 31.6° either left or
right, depending upon the desired cut for
the application.
See the following table for correct angle
settings and correct positioning of the
crown molding on the miter table.
Crown molding has a high top rear spring
angle (the section that fits flat against the
ceiling) of 52° and a bottom rear spring
angle (the section that fits flat against the
wall) of 38°.
FIG. 19
OPERATION
Key Miter Setting Bevel Setting Type of cut
IL 31.6°Right 33.9° Inside corner - Left side
1. Position top of the molding against the fence.
2. LEFT side is finished piece.
IR 31.6° Left 33.9° Inside corner - Right side
1. Position bottom of the molding against the fence.
2. LEFT side is finished piece.
OL 31.6° Left 33.9° Outside corner - Left side
1. Position bottom of the molding against the fence.
2. RIGHT side is finished piece.
OR 31.6° Right 33.9° Outside corner - Right side
1. Position top of the molding against the fence.
2. RIGHT side is finished piece.