Dewalt DWS716XPS Instruction Manual - Page 12

English Fig. U Cutting Base Molding up to 6.5" (165 mm) Vertically Against the Fence (Fig. V) Position molding as shown in Figure V. All cuts made with the back of the molding against the fence and bottom of the molding against the base. Inside corner Outside corner Left side 1. Miter left 45° 2. Save left side of cut 1. Miter right 45° 2. Save right side of cut Right side 1. Miter right 45° 2. Save right side of cut 1. Miter left 45° 2. Save right side of cut Material up to 6.5" (165 mm) can be cut as described above. Cutting Crown Molding Your miter saw is better suited to the task of cutting crown molding than any tool made. 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 latch points at 31.6° left and right for cutting crown molding at the proper angle and bevel stop pawls at 33.9° left and right. There is also a mark on the bevel scale at 33.9°. The Bevel Symbol/Miter Symbol 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 (Fig. A, V) 1. Molding laying with broad back surface down flat on saw table 38 . Fig. V BEVEL SYMBOL MITER SYMBOL TYPE OF CUT MITER ANGLE BEVEL ANGLE Left side, Inside corner 35.3° right 30° left Right side, Inside corner 35.3° right 30° right Left side, Outside corner 35.3° left 30° right Right side, Outside corner 35.3° right 30° left When setting bevel and miter angles for all compound miters, remember that: The angles presented for crown moldings are very precise and difficult to set exactly. Since they can easily shift slightly and very few rooms have exactly square corners, all settings should be tested on scrap molding. PRETESTING WITH SCRAP MATERIAL IS EXTREMELY IMPORTANT! Alternative Method for Cutting Crown Molding (Fig. W) Place the molding on the table at an angle between the sliding fence 10 and the saw table 38 , as shown in Figure W. Use of the crown molding fence accessory (DW7084) is highly recommended because of its degree of accuracy and convenience. The crown molding fence accessory is available for purchase from your local dealer. The advantage to cutting crown molding using this method is that no bevel cut is required. Minute changes in the miter angle can be made without affecting the bevel angle. This way, when corners other than 90° are encountered, the saw can be quickly and easily adjusted for them. Use the crown molding fence accessory to maintain the angle at which the molding will be on the wall. Fig. W 38 10 Instructions for Cutting Crown Molding Angled Between the Fence and Base of the Saw for All Cuts 1. Angle the molding so the bottom of the molding (part which goes against the wall when installed) is against the fence and the top of the molding is resting on the base of the saw, as shown in Figure W. 2. The angled "flats" on the back of the molding must rest squarely on the fence and base of the saw. Inside corner Outside corner Left side 1. Miter right 45° 2. Save right side of cut 1. Miter left 45° 2. Save right side of cut Right side 1. Miter left 45° 2. Save left side of cut 1. Miter right 45° 2. Save left side of cut 10 38 2. For standard U.S. crown molding with a 52°/38° spring angle, match the following semi-circle symbols on your saws bevel and miter scales per the chart below. TYPE OF CUT Left side, Inside corner Right side, Inside corner Left side, Outside corner Right side, Outside corner BEVEL SYMBOL MITER SYMBOL MITER ANGLE BEVEL ANGLE 31.6° right 33.9° left 31.6° right 33.9° right 31.6° left 33.9° right 31.6° right 33.9° left Special Cuts NEVER MAKE ANY CUT UNLESS THE MATERIAL IS SECURED ON THE TABLE AND AGAINST THE FENCE. Aluminum Cutting (Fig. A, X, Y) ALWAYS USE THE APPROPRIATE SAW BLADE MADE ESPECIALLY FOR CUTTING ALUMINUM. These are available at your local DeWALT retailer or DeWALT service center. Certain workpieces, due to their size, shape or surface finish, may require the use of a clamp or fixture to prevent movement during the cut. Position the material so that you will be cutting the thinnest cross section, as shown in Figure X. Figure Y illustrates the wrong way to cut these extrusions. Use a stick wax cutting lubricant when cutting aluminum. Apply the stick wax directly to the saw blade 26 before cutting. Never apply stick wax to a moving blade. The wax, available at most hardware stores and industrial mill supply houses, provides proper lubrication and keeps chips from adhering to the blade. Be sure to properly secure workpiece. For non-standard crown molding with a 45° spring angle, match the following triangle symbols on your saws bevel and miter scales per the chart below. 10