Cutting Compound Miters; Miter Scale; Vernier Scale; When Mitering To The Right - DeWalt DW713 Instruction Manual

- EXAMPLES -
NO. S IDES ANGLE M ITER ORBEVEL
4 45 °
5 36 °
6 30 °
7 25.7 °
8 22.5 °
9 20 °
10 18 °
CUTTING COMPOUND MITERS
A compound miter is a cut made using a miter angle and a
bevel angle at the same time. This is the type of cut used
to make frames or boxes with slanting sides like the one
shown in Figure 18.
NOTE: If the cutting angle varies from cut to cut, check that
the bevel clamp knob and the miter lock knob are securely
tightened. These knobs must be tightened after making
any changes in bevel or miter.
The chart shown on page 16 will assist you in selecting
the proper bevel and miter settings for common compound
miter cuts. To use the chart, select the desired angle "A"
(Figure 19) 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 miter angle.
Set your saw to the prescribed angles and make a few
trial cuts. Practice fitting the cut pieces together until you
develop a feel for this procedure and feel comfortable with
it.
EXAMPLE: To make a 4 sided box with 26 ° exterior
angles (Angle A, Figure 19), use the upper right arc. Find
26 ° on the arc scale. Follow the horizontal intersecting
line to either side to get miter 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
settings on saw.
MITER SCALE
The scale is used when calculating angles. To calculate
the proper miter angle, divide 180° by the number of sides
of the box or frame. Refer to the chart on page 11 for some
examples.
VERNIER SCALE (FIG. 23, 24)
Your saw is equipped with a vernier scale for added
precision. The vernier scale allows you to accurately set
miter angles to the nearest 1/4 ° (15 minutes). To use the
vernier scale follow the steps listed below.
(As an example, let's assume that the angle you want to
miter is 24-1/4 ° right).
1. Turn off miter saw.
2. Set the miter angle to the nearest whole degree desired
by aligning the center mark in the vernier scale, shown
in Figure 23, with the whole degree number etched in
FIG. 23
CENTER MARK ON VERNIER SCALE ALIGNS WITH
DESIRED WHOLE ANGLE ON MITER SCALE
(24 ° RIGHT MITER)
FIG. 24
1/4° VERNIER MARK ALIGNS WITH CLOSEST WHOLE
DEGREE MARK ON MITER SCALE (24-1/4 ° RIGHT MITER)
FIG. 25
the miter scale. Examine Figure 23 closely; the setting
shown is 24 ° right miter.
3. To set the additional 1/4 °, squeeze the miter arm lock
and carefully move the arm to the RIGHT until the 1/4°
vernier mark aligns with the CLOSEST degree mark
on the miter scale. In our example, the closest degree
mark on the miter scale happens to be 25 ° . Figure 24
shows a setting of 24-1/4 ° right miter.
For settings that require partial degrees (1/4, 1/2, 3/4 °)
align the desired vernier mark with the CLOSEST degree
mark on the miter scale, as described above. (The plastic
vernier plate is inscribed with marks for 1/4, 1/2, 3/4 and l°.
Only the 1/2 ° is numerically labeled.)
WHEN MITERING TO THE RIGHT
To increase the miter angle when mitering to the right,
move the arm to align the appropriate vernier mark with the
closest mark on the miter scale to the right. To decrease
the miter angle when mitering to the right, move the arm to
align the appropriate vernier mark with the closest mark on
the miter scale to the left.
WHEN MITERING TO THE LEFT
To increase the miter angle when mitering to the left, move
the arm to align the appropriate vernier mark with the
closest mark on the miter scale to the left. To decrease the
miter angle when mitering to the left, move the arm to align
the appropriate vernier mark with the closest mark on the
miter scale to the right.
CUTTING BASE MOLDING
ALWAYS MAKE A DRY RUN WITHOUT POWER BEFORE
MAKING ANY CUTS.
Straight 90 ° cuts :
Position the wood against the fence as shown in
Figure 21. Turn on the saw, allow the blade to reach full
speed and lower the arm smoothly through the cut.
CUTTING BASE MOLDING UP TO 3.5" (88.9 mm)
HIGH VERTICALLY AGAINST THE FENCE
Position molding as shown in Figure 25.
All cuts are made with the back of the molding against the
fence and bottom of the molding against the base.
INSIDE CORNER: OUTSIDE CORNER:
Left side Left side
1. Miter left 45 °
2. Save left side of cut
1. Miter right at 45 °
2. Save left side of cut
Right side Right side
1. Miter Right 45 ° 1. Miter left at 45 °
2. Save right side of cut 2. Save right side of cut
Material up to 3.5" (88.9 mm) can be cut as described
above. For wider boards [up to 4.25" (107.95 mm)] several
minor concessions must be made.
When cutting a board between 3.5" (88.9 mm) and 4.25"
(107.95 mm) in width the roller on the tip of the guard could
11