Ryobi TSS100L1 Manuel d'utilisateur télécharger pdf (Page 29)

100

29 — English

OPERATION

Fig. 36

When cutting crown molding by this method, the bevel angle

should be set at 33.85°. The miter angle should be set at 31.6°

either right or left, depending on the desired cut for the applica-

tion. See the chart below for correct angle settings and correct

positioning of crown molding on miter table.

The settings in the chart below can be used for cutting All Stan-

dard (U.S.) crown molding with 52° and 38°

angles. The crown

molding is placed flat on the miter table using the compound

features of your miter saw.

CEILING

INSIDE

CORNER

CROWN MOLDING FLAT ON MITER TABLE

FENCE

MITER TABLE

FENCE

MITER TABLE

BOTTOM EDGE AGAINST FENCE =

RIGHT SIDE, INSIDE CORNER

LEFT SIDE, OUTSIDE CORNER

OUTSIDE CORNER

TOP EDGE AGAINST FENCE =

LEFT SIDE, INSIDE CORNER

RIGHT SIDE, OUTSIDE CORNER

CUTTING CROWN MOLDING

The compound miter saw does an excellent job of cutting 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

flat 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 flat against the ceiling)

of 52° and a bottom rear angle (the section that fits flat against

the wall) of 38°.

LAYING MOLDING FLAT ON THE MITER

TABLE

See Figure 36.

To use this method for accurately cutting crown molding for a

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 molding 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.

Bevel

Angle Type of Cut

Setting

Left side, inside corner

1. Top edge of molding against fence

2. Miter table set right 31.62°

3. Save left end of cut

Right side, inside corner

1. Bottom edge of molding against fence

2. Miter table set left 31.62°

3. Save left end of cut

Left side, outside corner

1. Bottom edge of molding against fence

2. Miter table set left 31.62°

3. Save right end of cut

Right side, outside corner

1. Top edge of molding against fence

2. Miter table set right 31.62°

3. Save right end of cut

33.85°

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Ryobi TSS100L1 Manuel d'utilisateur Page 29

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