Évaluations - 4, GPA: 4
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Facilité d'utilisation
The two contact surfaces on a piece of crown molding that fit flat against the ceiling and the wall of a room are at angles that, when added together, equal exactly 90°. Most crown molding has a top rear angle (the section that fits flat against the ceiling) of 52° and a bottom rear angle (the section that fits flat against the wall) of 38° . LAYING MOLDING FLAT ON THE MITER TABLE See Figure 29. To use this method for accurately cutting crown molding for a 90° inside or outside corner, lay the molding with its broad back surface flat on the miter table and against the fence. 52° CEILING W A L L 38° FENCE MITER TABLE TOP EDGE AGAINST FENCE = LEFT SIDE, INSIDE CORNER RIGHT SIDE, OUTSIDE CORNER When setting the bevel and miter angles for compound miters, remember that the settings are interdependent; changing one angle changes the other angle as well. Keep in mind that the angles for crown moldings are very precise and difficult to set. Since it is very easy for these angles to shift, all settings should first be tested on scrap molding. Also most walls do not have angles of exactly 90° , therefore, you will need to fine tune your settings. When cutting crown molding by this method the bevel angle should be set at 33.85°. The miter angle should be set at 31.62° either right or left, depending on the desired cut for the application. See the chart below for correct angle settings and correct positioning of crown molding on miter table. The settings in the chart below can be used for cutting All Standard (U.S.) crown molding with 52° and 38° angles. The crown molding is placed flat on the miter table using the compound features of your miter saw. INSIDE CORNER OUTSIDE FENCE BOTTOM EDGE AGAINST FENCE = RIGHT SIDE, INSIDE CORNER LEFT SIDE, OUTSIDE CORNER MITER TABLE CORNER CROWN MOLDING FLAT ON MITER TABLE Fig. 29 24 25 OPERATION 0 WRONG WARNING: To avoid a kickback and to avoid serious personal injury, never position the concave edge of bowed or warped material against the fence. CLAMPING WIDE WORKPIECES See Figure 32. When cutting wide workpieces, such as 2 in. x 6 in., boards should be clamped with a C-clamp as shown in figure 32. Bevel Angle Type of Cut Setting Left side, inside corner 1. Top edge of molding against fence 2. Miter table set right 31.62° 3. Save left end of cut Right side, inside corner 1. Bottom edge of molding against fence 2. Miter table set left 31.62° 3. Save left end of cut Left side, outside corner 1. Bottom edge of molding against fence 2. Miter table set left 31.62° 3. Save right end of cut Right side, outside corner 1. Top edge of molding against fence 2. Miter table set right 31.62° 3. Save right end of cut 33.85° 33.85° 33.85° 33.85° Fig. 32 CUTTING WARPED MATERIAL See Figures 30 and 31. When cutting warped material, always make sure it is positioned on the miter table with the convex side against the fence as shown in figure 30. If the warped material is positioned the wrong way as shown in figure 31, it will pinch the blade near the completion of the cut. WIDE BOARD Fig. 31 Fig. 30 RIGHT LASER GUIDE Make several practice cuts on different styles and thickness of material. Follow the directions below for using your Laser Guide. Removing Your Mark: Position the laser line near the left edge of your mark on the work surface in order to remove the mark. To Cut Your Mark: Position the laser line near or over your mark on the work surface in order to cut the mark. To Leave Your Mark: Position the laser line near the right edge of your mark on the work surface in order to leave the mark. After you have become familiar with using your Laser Guide, you will be able to remove, cut, or leave your mark on the work surface. Practice will teach you the correct position for aligning the laser line with your mark. Fig. 34 BROKEN RED LINE MOUNTING THE EXACTLINE™ LASER GUIDE See Figure 33 . Unplug your saw. WARNING: Failure to unplug your saw could result in accidental starting causing possible serious personal injury. See "To Install Blade" in the adjustments section of this operator's manual. Make sure inner blade washer is in place before positioning saw blade on the spindle of your saw. Note: The laser guide replaces the outer blade washer. Place the laser guide onto the spindle, aligning the double "D" flats in the laser guide with the flats on the spindle. Position flat surface of laser guide against the blade. Warning labels are visible when laser guide is mounted properly. Depress spindle lock button and secure laser guide using blade wrench provided. Note: The hex key bolt has left hand threads. Turn bolt counterclockwise to tighten. Using the blade wrench provided with your saw, tighten bolt securely. Return the blade wrench to the wrench storage area. Replace the lower blade guard and blade bolt cover. Retighten phillips screw securing blade bolt cover. Tighten screw securely. DANGER: Laser radiation. Avoid direct eye contact with light source. OPERATION See Figure 34. The laser ...