Dewalt DCS361M1 Instruction Manual - Page 16

English - EXAMPLES - NUMBER OF SIDES MITER OR BEVEL ANGLE 4 45° 5 36° 6 30° 7 25.7° 8 22.5° 9 20° 10 18° The chart assumes that all sides are of equal length. For a shape that is not shown in the chart, use the following formula: 180º divided by the number of sides equals the miter (if the material is cut vertically) or bevel angle (if the material is cut laying flat). Cutting Compound Miters FIG. 17 (Fig. 17) A compound miter is a cut made using a miter angle and a bevel angle at the same time. This is the type of cut used to make frames or boxes with slanting sides like the one shown in Figure 17. NOTE: If the cutting angle varies from cut to cut, check that the bevel lock knob and the miter lock handle are securely locked. These must be locked ANGLE "A" after making any changes in bevel or miter. The chart at the end of this manual (Table 1) will assist you in selecting the proper bevel and miter settings for common compound miter cuts. To use the chart, select the desired angle A (Fig. 17) of your project and locate that angle on the appropriate arc in the chart. From that point follow the chart straight down to find the correct bevel angle and straight across to find the correct miter angle. Set your saw to the prescribed angles and make a few trial cuts. Practice fitting the cut pieces together until you develop a feel for this procedure and feel comfortable with it. Example: To make a 4-sided box with 26º exterior angles (Angle A, Fig. 17), use the upper right arc. Find 26° on the arc scale. Follow the horizontal intersecting line to either side to get miter angle setting on saw (42°). Likewise, follow the vertical intersecting line to the top or bottom to get the bevel angle setting on the saw (18°). Always try cuts on a few scrap pieces of wood to verify the settings on the saw. Cutting Base Molding (Fig. 18) Straight 90º cuts: Position the wood against the fence and hold it in place as shown in Figure 18. Turn on the saw, allow the blade to reach full speed and lower the arm smoothly through the cut. CUTTING BASE MOLDING UP TO 3.5" (89 mm) HIGH VERTICALLY AGAINST THE FENCE Position material as shown in Figure 18. FIG. 18 All cuts should be made with the back of the molding against the fence and with the bottom of the molding against the table. INSIDE CORNER OUTSIDE CORNER Left side Miter left 45° Save left side of cut Miter right 45° Save left side of cut Right side Miter right 45° Save right side of cut Miter left 45° Save right side of cut Material up to 3.5" (89 mm) can be cut as described above. CUTTING CROWN MOLDING In order to fit properly, crown molding must be compound mitered with extreme accuracy. The two flat surfaces on a given piece of crown molding are at angles that, when added together, equal exactly 90°. Most, but not all, crown molding has a top rear angle (the section that fits flat against the ceiling) of 52° and a bottom rear angle (the part that fits flat against the wall) of 38°. Your miter saw has special pre-set miter detent points at 31.6° left and right for cutting crown molding at the proper angle. There is also a mark on the bevel scale at 33.8°. The Bevel Setting/Type of Cut chart gives the proper settings for cutting crown molding. (The numbers for the miter and bevel settings are very precise and are not easy to accurately set on your saw.) Since most rooms do not have angles of precisely 90°, you will have to fine tune your settings anyway. PRETESTING WITH SCRAP MATERIAL IS EXTREMELY IMPORTANT! INSTRUCTIONS FOR CUTTING CROWN MOLDING LAYING FLAT AND USING THE COMPOUND FEATURES 1. Lay the molding with broad back surface down flat on saw table (Fig. 19). 2. The settings below are for all Standard (U.S.) crown molding with 52° and 38° angles. BEVEL SETTING 33.8° TYPE OF CUT LEFT SIDE, INSIDE CORNER: 1. Top of molding against fence 2. Miter table set right 31.62° 3. Save left end of cut 14