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RIPPING
Ripping is the operation of making a lengthwise cut
through a board, as shown in Fig. 61, and the rip fence
(A) is used to position and guide the work. One edge of
the work rides against the rip fence while the flat side of
the board rests on the table. Since the work is pushed
along the fence, it must have a straight edge and make
solid contact with the table. The saw guard must be used.
The guard has anti-kickback fingers to prevent kickback
and a splitter to prevent the saw kerf from closing behind
the blade.
Start the motor and advance the work holding it down
and against the fence. Never stand in the line of the saw
cut when ripping. Hold the work with both hands and
push it along the fence and into the saw blade as shown
in Fig. 61. The work can then be fed through the saw
blade with one or two hands. After the work is beyond the
saw blade and anti-kickback fingers, the hand is
removed from the work. When this is done the work will
either stay on the table, tilt up slightly and be caught by
the rear end of the guard or slide off the table to the floor.
Alternately, the feed can continue to the end of the table,
after which the work is lifted and brought back along the
outside edge of the fence. The cut-off stock remains on
the table and is not touched with the hands until the saw
blade is stopped, unless it is a large piece allowing safe
removal. When ripping boards longer than three feet, it is
recommended that a work support be used at the rear of
the saw to keep the workpiece from falling off the saw
table.
If the ripped work is less than 4 inches wide, a push stick
should always be used to complete the feed, as shown in
Fig. 62. The push stick can easily be made from scrap
material as explained in the section "CONSTRUCTING A
PUSH STICK." When ripping stock 2 inches or narrower,
assemble an auxiliary wood facing to the fence, as
explained in the section "USING AUXILIARY WOOD
FACING ON RIP FENCE" and use a push stick.
Fig. 61
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Fig. 62
USING ACCESSORY
MOULDING CUTTERHEAD
Moulding is cutting a shape on the edge or face of the
work. Cutting mouldings with a moulding cutterhead in
the circular saw is a fast, safe and clean operation.The
many different knife shapes available make it possible for
the operator to produce almost any kind of mouldings,
such as various styles of corner moulds, picture frames,
table edges, etc.
The moulding head consists of a cutterhead in which can
be mounted various shapes of steel knives, as shown in
Fig. 63. Each of the three knives in a set is fitted into a
groove in the cutterhead and securely clamped with a
screw. The knife grooves should be kept free of sawdust
which would prevent the cutter from seating properly.
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Fig. 63
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