DeWalt DWS780 Manual De Instrucciones página 13

CUTTING BASE MOLDING FROM 3" UP TO 6.75" (76 mm to 171 ram) HIGH
VERTICALLY AGAINST THE FENCE
NOTE: Use the slide lock lever, shown in Figure 7, when cutting base molding measuring from
3" to 6.75" (76 mm to 171 ram) high vertically against the fence.
Position material as shown in Figure 16.
All cuts should be made with the back of the molding against the fence and with the bottom
of the molding against the table.
INSIDE CORNER OUTSIDE CORNER
Miter left 45 ° Miter right 45 °
Left side
Save left side of cut Save left side of cut
Miter right 45° Miter left 45 °
Right side
Save right side of cut
Save right side of cut
Material up to 6.75" (171 ram) can be cut as described above.
FIG. 16
Cutting Crown Molding
Your miter saw is well suited to the task of cutting crown molding. In order to fit properly,
crown molding must be compound mitered with extreme accuracy.
The two flat surfaces on a given piece of crown molding are at angles that, when added
together, equal exactly 90 °. Most, but not all, crown molding has a top rear angle (the section
that fits flat against the ceiling) of 52° and a bottom rear angle (the part that fits flat against
the wall) of 38 °.
Your miter saw has special pre-set miter latch points at 31.62 ° left and right for cutting crown
molding at the proper angle and bevel stop pawls at 33.9 ° left and right. There is also a mark
on the bevel scale at 33.9 ° .
The chart below gives the proper settings for cutting crown molding. (The numbers for
the miter and bevel settings are very precise and are not easy to accurately set on your
saw.) Since most rooms do not have angles of precisely 90 °, you will have to fine tune your
settings anyway.
PRETESTING WITH SCRAP MATERIAL IS EXTREMELY IMPORTANT!
INSTRUCTIONS FOR cu'rI'ING CROWN MOLDING LAYING FLAT AND USING THE
COMPOUND FEATURES
1. Molding should lay flat with broad back surface down on saw table (Fig. 17).
2. Top of molding against fence.
3. The settings below are for all standard (U.S.) crown molding with 52° and 38 ° angles.
Left side
Right side
INSIDE CORNER OUTSIDE CORNER
Bevel left 33.9 ° Bevel right 33.9 °
Miter table set at right 31.62 ° Miter table set at left 31.62 °
Save left end of cut Save left end of cut
Bevel right 33.9 ° Bevel left 33.9 °
Miter table set at left 31.62 ° Miter table set at right 31.62 °
Save right end of cut Save right end of cut
When setting bevel and miter angles for all compound miters, remember that:
The angles presented for crown moldings are very precise and difficult to set exactly. Since
they can easily shift slightly and very few rooms have exactly square corners, all settings
should be tested on scrap molding.
FIG. 17 FIG.18
FENCE
TABLE
FENCE
DW7084
CROWN
BOTTOM SIDE MOLDING
OF MOLDING FENCE
TABLE
CROWN MOLDING FLAT ON TABLE
AND AGAINST FENCE
CROWN MOLDING BETWEEN
FENCE AND TABLE
PRETESTING WITH SCRAP MATERIAL IS EXTREMELY IMPORTANT!
ALTERNATIVE METHOD FOR CUTTING CROWN MOLDING
Place the molding on the table at an angle between the fence and the saw table, as shown
in Figure 18. Use of the crown molding fence accessory (DW7084) is highly recommended
because of its degree of accuracy and convenience (Fig. 1). The crown molding fence
accessory is available for purchase from your local dealer.
The advantage to cutting crown molding using this method is that no bevel cut is required.
Minute changes in the miter angle can be made without affecting the bevel angle. This way,
when corners other than 90 ° are encountered, the saw can be quickly and easily adjusted
for them. Use the crown molding fence accessory to maintain the angle at which the molding
will be on the wall.
INSTRUCTIONS FOR cu'rI'ING CROWN MOLDING ANGLED BETWEEN THE
FENCE AND BASE OF THE SAW FOR ALL CUTS
1. Angle the molding so the bottom of the molding (part which goes against the wall when
installed) is against the fence and the top of the molding is resting on the saw table, as
shown in Figure 18.
2. The angled "flats" on the back of the molding must rest squarely on the fence and saw
table.
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