Cutting Crown Molding - Black+Decker BES700 Manual Del Usuario

The chart below gives the proper angles for a variety
of shapes.
Number of Sides
4
5
6
7
8
9
10
The chart assumes that all sides are of equal length. For a
shape that is not shown in the chart, use the following formula:
180º divided by the number of sides equals the miter (if the
material is cut vertically) or bevel angle (if the material is cut
laying flat).
Cutting compound miters (fig. Q3)
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 Q3.
Note: If the cutting angle varies from cut to cut, check that
the bevel lock knob and the miter lock handle are securely
locked. These must be locked after making any changes in
bevel or miter.
Cutting base molding (Fig. R)
Straight 90º cuts:
Position the wood against the fence and hold it in place as
shown in Figure R. Turn on the saw, allow the blade to reach
full speed and lower the arm smoothly through the cut.
Cutting base molding up to 70 mm / 90 mm high
vertically against the Fence
BES700 - 70 mm for 216 mm
BES710 - 90 mm for 254 mm
Position material as shown in Figure R 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
Left Side Miter left 45°
Save left side of cut
Right Side Miter right 45°
Save right side of
cut
Miter or Bevel Angle
45º
36º
30º
25.7º
22.5º
20º
18º
Outside Corner
Miter right 45°
Save left side of cut
Miter left 45°
Save right side of
cut
(Original instructions)
Material up to 70 mm / 90mm can be cut as described above.
BES700 - 70 mm for 216 mm
BES710 - 90 mm for 254 mm

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 detent points at 31.6°
left and right for cutting crown molding at the proper angle.
There is also a mark on the bevel scale at 33.9°.
The Bevel Setting/Type of Cut chart 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.
Instructions for cutting crown molding laying flat
and using the compound features
Lay the molding with broad back surface down flat on saw
u
table (fig. S1).
The settings below are for all Standard crown molding with
u
52° and 38° angles.
Bevel Setting Type Of Cut
LEFT SIDE, INSIDE CORNER:
1. Top of molding against fence
33.9°
2. Miter table set right 31.6°
3. Save left end of cut
RIGHT SIDE, INSIDE CORNER:
1. Bottom of molding against fence
33.9°
2. Miter table set left 31.6°
3. Save left end of cut
LEFT SIDE, OUTSIDE CORNER:
1. Bottom of molding against fence
33.9°
2. Miter table set left 31.6°
3. Save right end of cut
RIGHT SIDE, OUTSIDE CORNER:
1. Top of molding against fence
33.9°
2. Miter table set right 31.6°
3. Save right end of cut
Note: 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.
ENGLISH
15