Compound Cutting - Makita M2300 Instruction Manual

CAUTION:
Always be sure that the blade will
move down to bevel direction during a bevel cut.
Keep hands out of path of saw blade.
CAUTION:
During a bevel cut, it may create
a condition whereby the piece cut off will come
to rest against the side of the blade. If the blade is
raised while the blade is still rotating, this piece may
be caught by the blade, causing fragments to be scat-
tered which is dangerous. The blade should be raised
ONLY after the blade has come to a complete stop.
CAUTION:
When pressing the handle down,
apply pressure parallel to the blade. If the pressure
is not parallel to the blade during a cut, the angle of
the blade might be shifted and the precision of the cut
will be impaired.
CAUTION:
(Only for tools with sub-fence)
Always set the sub-fence outside when perform-
ing left bevel cuts.

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 cutting can be
performed at the angle shown in the table.
Bevel angle
45°
When performing compound cutting, refer to "Press
cutting", "Miter cutting" and "Bevel cut" explanations.
Cutting crown and cove moldings
Crown and cove moldings can be cut on a compound
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.
► Fig.29: 1. 52/38° type crown molding 2. 45° type
crown molding 3. 45° type cove molding
There are crown and cove molding joints which are
made to fit "Inside" 90° corners ((a) and (b) in the figure)
and "Outside" 90° corners ((c) and (d) in the figure.)
► Fig.30: 1. Inside corner 2. Outside corner
► Fig.31: 1. Inside corner 2. Outside corner
Measuring
Measure the wall width, and adjust the width of the
workpiece according to it. Always make sure that width
of the workpiece's wall contact edge is the same as wall
length.
► Fig.32: 1. Workpiece 2. Wall width 3. Width of the
workpiece 4. Wall contact edge
Always use several 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 table (A) and
position the moldings on the top surface of the saw
base as indicated in the table (B).
Miter angle
Left and Right 0° - 45°
15 ENGLISH
In the case of left bevel cut
► Fig.33: 1. Inside corner 2. Outside corner
Table (A)
– Molding Bevel angle
position
52/38°
in the
type
figure
For (a) Left
inside 33.9°
corner
(b)
For (c)
outside
(d)
corner
Table (B)
– Molding
position in
the figure
For inside (a)
corner
(b)
For outside (c)
corner
(d)
Example:
In the case of cutting 52/38° type crown molding for
position (a) in the above figure:
• 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.
Cutting aluminum extrusion
► Fig.34: 1. Vise 2. Spacer block 3. Guide fence
4. Aluminum extrusion 5. Spacer block
When securing aluminum extrusions, use spacer blocks
or pieces of scrap as shown in the figure to prevent
deformation of the aluminum. Use a cutting lubricant
when cutting the aluminum extrusion to prevent build-up
of the aluminum material on the blade.
CAUTION:
Never attempt to cut thick or round
aluminum extrusions. Thick aluminum extrusions
may come loose during operation and round alumi-
num extrusions cannot be secured firmly with this
tool.
Miter angle
45° type 52/38° 45° type
type
Left 30° Right Right
31.6° 35.3°
Left Left
31.6° 35.3°
Right Right
31.6° 35.3°
Molding Finished
edge against piece
guide fence
Ceiling Finished
contact edge piece will be
should be on the Left
against guide side of blade.
fence.
Wall contact
edge should
Finished
be against
piece will be
guide fence.
on the Right
Ceiling side of blade.
contact edge
should be
against guide
fence.