DeWalt DWS780 Notice D'instructions Originale page 42

EN G LI S H
The chart (Table 1) shown below will assist you in selecting the proper
bevel and mitre settings for common compound mitre cuts.
• Select the desired angle A (fig. 22) of your project and locate that
angle on the appropriate arc in the chart.
• From that point follow the chart straight down to find the correct
bevel angle and straight across to find the correct mitre angle.
• Set your saw to the prescribed angles and make a few trial cuts.
Practise fitting the cut pieces together.
Example: To make a 4-sided box with 26° exterior angles (Angle A,
fig. 22), use the upper right arc. Find 26° on the arc scale. Follow the
horizontal intersecting line to either side to get mitre angle setting on
saw (42°). Likewise, follow the vertical intersecting line to the top or
bottom to get the bevel angle setting on the saw (18°). Always try cuts
on a few scrap pieces of wood to verify the settings on the saw.
6 SIDED BOX
8 SIDED BOX
SET THIS BEVEL ANGLE ON SAW
Cutting Base Moulding (fi g. 13, 23)
• Straight 90° cuts:
– Position the wood against the fence and hold it in place as
shown in figure 23. Turn on the saw, allow the blade to reach full
speed and lower the arm smoothly through the cut.
CUTTING BASE MOULDING FROM 76 mm UP TO 171 mm (3" UP TO 6.75") HIGH
VERTICALLY AGAINST THE FENCE
NOTE: Use the slide lock lever (a6), shown in figure 13, when cutting
base moulding measuring from 76 mm to 171 mm (3" to 6.75") high
vertically against the fence.
Position material as shown in figure 23.
All cuts should be made with the back of the moulding against the
fence and with the bottom of the moulding against the table.
INSIDE CORNER
Mitre left 45°
Left side
Save left side of cut
Mitre right 45°
Right side
Save right side of cut
Material up to 171 mm (6.75") can be cut as described above.
Cutting Crown Moulding (fi g. 1A, 5, 24A, 24B)
Your mitre saw is well suited to the task of cutting crown moulding. In
order to fit properly, crown moulding must be compound mitred with
extreme accuracy.
Your mitre saw has special pre-set mitre latch points at 31.62° left and
right for cutting crown moulding at the proper angle and bevel stop
pawls at 33.86° left and right. There is also a mark on the bevel scale
(k) at 33.9°. The chart below gives the proper settings for cutting crown
moulding.
NOTE: Pretesting with scrap material is extremely important!
40
SQUARE BOX
OUTSIDE CORNER
Mitre right 45°
Save left side of cut
Mitre left 45°
Save right side of cut
INSTRUCTIONS FOR CUTTING CROWN MOULDING LAYING FLAT AND USING THE
COMPOUND FEATURES (FIG. 24A)
1. Moulding should lay flat with the broad back surface down on the
saw table.
2. Place the top of the moulding against the fence.
3. The settings below are for 45° sprung crown moulding.
INSIDE CORNER
Bevel left 30°
Left
Mitre table set at right 35.26°
side
Save left end of cut
Bevel right 30°
Right
Mitre table set at left 35.26°
side
Save right end of cut
4. The settings below are for crown moulding with 52° angles at the
top and 38° angles at the bottom.
INSIDE CORNER
Bevel left 33.9°
Left
Mitre table set at right 31.62°
side
Save left end of cut
Bevel right 33.9°
Right
Mitre table set at left 31.62°
side
Save right end of cut
ALTERNATIVE METHOD FOR CUTTING CROWN MOULDING (FIG. 5)
Cutting crown moulding using this method does not require a bevel cut.
Minute changes in the mitre angle can be made without affecting the
bevel angle. When corners other than 90° are encountered, the saw
can be quickly and easily adjusted for them.
Use of the DW7084 crown moulding fence accessory (ll) is highly
recommended because of its degree of accuracy and convenience
(fig. 5).
INSTRUCTIONS FOR CUTTING CROWN MOULDING ANGLED BETWEEN THE
FENCE AND BASE OF THE SAW FOR ALL CUTS (FIG. 24B)
1. Angle the moulding so the bottom of the moulding (the part which
goes against the wall when installed) is against the fence and the
top of the moulding is resting on the saw table.
2. The angled "flats" on the back of the moulding must rest squarely
on the fence and saw table.
INSIDE CORNER
Left Mitre right at 45°
side Save right side of cut
Right Mitre left at 45°
side Save left side of cut
Special Cuts
WARNING: Never make any cut unless the material is
secured on the table and against the fence.
ALUMINUM CUTTING (FIG. 25A, 25B)
ALWAYS USE THE APPROPRIATE SAW BLADE MADE
ESPECIALLY FOR CUTTING ALUMINUM.
Certain workpieces may require the use of a clamp or fixture to prevent
movement during the cut. Position the material so that you will be
cutting the thinnest cross section, as shown in figure 25A. Figure 25B
illustrates the wrong way to cut these extrusions.
Use a stick wax cutting lubricant when cutting aluminum. Apply the
stick wax directly to the saw blade (ss) before cutting. Never apply stick
wax to a moving blade. The wax provides proper lubrication and keeps
chips from adhering to the blade.
BOWED MATERIAL (FIG. 26A, 26B)
When cutting bowed material always position it as shown in figure 26A
and never like that shown in figure 26B. Positioning the material
incorrectly will cause it to pinch the blade.
CUTTING PLASTIC PIPE OR OTHER ROUND MATERIAL
Plastic pipe can be easily cut with your saw. It should be cut just like
wood and clamped or held firmly to the fence to keep it from
rolling. This is extremely important when making angle cuts.
OUTSIDE CORNER
Bevel right 30°
Mitre table set at left 35.26°
Save left end of cut
Bevel left 30°
Mitre table set at right 35.26°
Save right end of cut
OUTSIDE CORNER
Bevel right 33.9°
Mitre table set at left 31.62°
Save left end of cut
Bevel left 33.9°
Mitre table set at right 31.62°
Save right end of cut
OUTSIDE CORNER
Mitre left at 45°
Save right side of cut
Mitre right at 45°
Save left side of cut