Stimmen - 4, Durchschnittliche Bewertung: 3.3
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Anleitung Zusammenfassung
The feed in cross-cutting continues until the work is cut in two, and the miter gage and work are pulled back to the starting point. Before pulling the work back, it is good practice to give the work a little sideways shift to move the work slightly away from the saw blade. Never pick up any short length of free work from the table while the saw is running. A smart operator never touches a cutoff piece unless it is at least a foot long. For added safety and convenience the miter gage can be fitted with an auxiliary wood-facing (C), as shown in Fig. 80, that should be at least 1 inch higher than the maximum depth of cut, and should extend out 12 inches or more to one side or the other depending on which miter gage slot is being used. This auxiliary wood-facing (C) can be fastened to the front of the miter gage by using two wood screws (A) through the holes provided in the miter gage body and into the wood-facing. When using the block (B) Fig. 81, as a cutoff gage, it is very important that the rear end of the block be positioned so the work piece is clear of the block before it enters the blade. NEVER USE THE FENCE AS A CUT-OFF GAGE WHEN CROSS-CUTTING. When cross-cutting a number of pieces to the same length, a block of wood (B), can be clamped to the fence and used as a cut-off gage as shown in Fig. 81. It is important that this block of wood always be positioned in front of the saw blade as shown. Once the cut-off length is determined, secure the fence and use the miter gage to feed the work into the cut. This block of wood allows the cut-off piece to move freely along the table surface without binding between the fence and the saw blade, thereby lessening the possibility of kickback and injury to the operator. Fig. 79 Fig. 80 A AC B Fig. 81 24 RIPPING Ripping is the operation of making a lengthwise cut through a board, as shown in Fig. 82, 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 wood kickback, and a splitter to prevent the wood kerf from closing and binding 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 and push it along the fence and into the saw blade as shown in Fig. 82. 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. A Fig. 82 Fig. 83 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. 83. The push stick can easily be made from scrap material as explained in the section “CONSTRUCTING A PUSH STICK.” When ripping material under 2 inches in width, a flat pushboard is a valuable accessory since ordinary type sticks may interfere with the blade guard. That flat pushboard can be made as shown in Fig. 83A. Fig. 83A 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. 84. 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. Fig. 84 25 For certain cutting operations such as dadoing and moulding where you are not cutting completely through the workpiece, the blade guard and splitter assembly cannot be used. Loosen screws (G) and (H) Fig. 85. Lift up and swing blade guard and splitter assembly (W) Fig. 86, to the rear of the saw, and then tighten screws (G) and (H). Always return and fasten the blade guard and splitter assembly to its proper operating position for normal thru-sawing operations. The mou...