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CUTTINGCROWNMOLDING
The compound miter saw does an excellent job of cut-
ting crown molding. In general, compound miter saws do
a better job of cutting crown molding than any other tool
made.
In order to fit properly, crown molding must be compound
mitered with extreme accuracy.
The two contact surfaces on a piece of crown molding
that fit fiat against the ceiling and the wall of a room are at
angles that, when added together, equal exactly 90°. Most
crown molding has a top rear angle (the section that fits
fiat against the ceiling) of 52° and a bottom rear angle (the
section that fits fiat against the wall) of 38°.
LAYING MOLDING FLAT ON THE MITER TABLE
See Figure 42.
To use this method for accurately cutting crown molding
for a 90° inside or outside corner, lay the molding with its
broad back surface flat on the miter table and against the
fence.
When setting the bevel and miter angles for compound
miters, remember that the settings are interdependent;
changing one angle changes the other angle as well.
Keep in mind that the angles for crown moldings are very
precise and difficult to set. Since it is very easy for these
angles to shift, all settings should first be tested on scrap
molding. Also most walls do not have angles of exactly
90, therefore, you will need to fine tune your settings.
When cutting crown molding by this method the bevel
angle should be set at 33.9 ° either right or left. The crown
molding stops are marked either 33.9°or 45°for the exact
angle for cutting crown molding.The miter angle should be
set at 31.6 ° either right or left, depending on the desired
cut for the application. See the chart on page 32 for cor-
rect angle settings and correct positioning of crown mold-
ing on miter table.
The settings in the chart on page 32 can be used for cut-
ting All Standard (U.S.) crown molding with 52° and 38 °
angles. The crown molding is placed fiat on the miter table
using the compound features of your miter saw.
38°
L
52° CEILING
FENCE
TOP EDGEAGAINSTFENCE=
® LEFTSIDE, INSIDECORNER
e RIGHTSIDE, OUTSIDECORNER
MITERTABLE
0 0
INSIDE
CORNER
FENCE
OUTSIDE
CORNER
BOTTOMEDGEAGAINSTFENCE=
• RIGHTSIDE, iNSiDECORNER
®LEFTSIDE, OUTSIDECORNER
MITERTABLE
CROWNMOLDINGFLATONMITER TABLE
Fig. 42
31
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