Cutting Bowed Material - Porter Cable 3807 Manual De Instrucciones

CUTTING ALUMINUM
Aluminum extrusions such as used for making aluminum screens and storm windows can easily be cut with your
compound miter saw. When cutting aluminum extrusions, or other sections that can be cut with a saw blade and are
within the capacity of the machine, position the material so the blade is cutting through the smallest cross-section (Fig.
28). The wrong way to cut aluminum angles is illustrated in Fig. 29. Be sure to apply a stick wax to the blade before
cutting aluminum stock. This stick wax is available at most industrial mill supply houses. The wax provides proper
lubrication and keeps chips from adhering to the blade.
Never apply lubricant to the blade while the machine is running.
FENCE
RIGHT

CUTTING BOWED MATERIAL

When cutting flat pieces, first check to see if the material is bowed. If it is, make sure the material is positioned on the
table as shown in Fig. 30.
If the material is positioned the wrong way, as shown in Fig. 31, the workpiece will pinch the blade near the completion
of the cut.
RIGHT
WORK SUPPORT EXTENSIONS
For support when cutting long pieces, construct a work
support extension. Fig. 32 illustrates the miter saw
mounted on two standard 2 x 4's (A). Fasten the four
mounting legs (two of which are shown at (B) Fig. 32 to
the 2 x 4's, using four screws (not supplied) through the
four holes in the mounting legs. The length of the 2 x 4's
(A) can vary, depending on the workpiece.
NOTE: Ensure that the top of the support 2 x 4's (C)
are level with the miter saw table. This is critical
because the distance from the top of the 2 x 4's (A) to the
miter saw table varies from saw to saw. In most cases,
standard 2 x 4's (C) can used. If these are too high, cut
them to fit. If the 2 x 4's are too low, use 2 x 6's. If these
are high, cut them to the correct height.
All manuals and user guides at all-guides.com
BLADE
FENCE
Fig. 28
Fig. 30
16
WRONG
WRONG
A B
BLADE
Fig. 29
Fig. 31
C
Fig. 32