Makita LS1040F Instruction Manual page 11

4. Compound cutting
Compound cutting is the process in which a bevel
angle is made at the same time in which a miter
angle is being cut on a workpiece. Compound cut-
ting can be performed at angle shown in the table.
Bevel angle
45˚
When performing compound cutting, refer to "Press
cutting", "Miter cutting" and "Bevel cut" explana-
tions.
5. Cutting crown and cove moldings
Crown and cove moldings can be cut on a com-
pound miter saw with the moldings laid flat on the
turn base.
There are two common types of crown moldings
and one type of cove moldings; 52/38° wall angle
crown molding, 45° wall angle crown molding and
45° wall angle cove molding. See illustrations.
52∞ 45∞
38∞ 45∞
1 2
There are crown and cove molding joints which are
made to fit "Inside" 90° corners ((1) and (2) in Fig.
A) and "Outside" 90° corners ((3) and (4) in Fig. A).
(1) (2) (3) (4)
1 2
Fig.A
1
(2)
(1)
(4)
(2)
(3)
(1)
(2)
(1)
Measuring
Measure the wall length and adjust workpiece on
table to cut wall contact edge to desired length.
Miter angle
Left and Right 0˚ - 45˚
001555
1. 52/38° type
crown molding
2. 45° type crown
45∞
molding
45∞
3. 45° type cove
molding
3
001556
1. Inside corner
2. Outside corner
001557
1. Inside corner
2. Outside corner
(1)
(2)
2
(1)
(2)
Always make sure that cut workpiece length at the
back of the workpiece is the same as wall length.
Adjust cut length for angle of cut. Always use sev-
eral pieces for test cuts to check the saw angles.
When cutting crown and cove moldings, set the
bevel angle and miter angle as indicated in the
006389
table (A) and position the moldings on the top sur-
face of the saw base as indicated in the table (B).
Molding
position in
Fig. A
For inside
corner
For outside
corner
Molding
position in
Fig. A
(1)
For inside
corner
(2)
(3)
For
outside
corner
(4)
Example:
In the case of cutting 52/38° type crown
molding for position (1) in Fig. A:
•
•
•
•
11
Table (A)
Bevel angle
52/38˚ type
45˚ type
(1)
(2)
Left 33.9˚ Left 30˚
(3)
(4)
Table (B)
Molding edge against
guide fence
Ceiling contact edge should
be against guide fence.
Wall contact edge should be
against guide fence.
Ceiling contact edge should
be against guide fence.
Tilt and secure bevel angle setting to
33.9° LEFT.
Adjust and secure miter angle setting to
31.6° RIGHT.
Lay crown molding with its broad back
(hidden) surface down on the turn base
with its CEILING CONTACT EDGE
against the guide fence on the saw.
The finished piece to be used will
always be on the LEFT side of the blade
after the cut has been made.
006361
Miter angle
45˚ type
52/38˚ type
Right 31.6˚
Right 35.3˚
Left 35.3˚
Left 31.6˚
Right 31.6˚
Right 35.3˚
006362
Finished piece
Finished piece
will be on the
Left side of
blade.
Finished piece
will be on the
Right side of
blade.