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-36 Figure 45. Crosscutting blade. Combination Blade: Used for cutting with and across the grain. A compromise between a rip blade and a cross-cut blade, a 10" combination blade will typically have between 40-50 teeth (Figure 46), an alternate top bevel and flat or alternate top bevel (Figure 49) and raker tooth profile. The teeth are arranged in groups of five. The gullets are small and shallow within the groups of five teeth, similar to a cross-cut blade; then large and deep between the groups, like a ripping blade. Figure 46. Combination blade. G1022 Series Table Saws Plywood Blade: Used for cutting plywood or veneers. 10" plywood blades have 40-80 teeth (Figure 47), a steep alternate top bevel tooth profile (Figure 49) and very shallow gullet. Figure 47. Plywood blade. Thin-kerf: Designed for saws with smaller motors and for reducing material waste, thin-kerf blades are thinner than standard blades. Performance and accuracy can be maintained by the use of blade stabilizers. Some blade guards/splitters are thicker than thin-kerf blades. DO NOT use the thin- kerf blade if this is the case or serious personal injury could result. Dado Blades: There are two types of dado blades: stacked and wobble. • Stacked Dado Blade—These dedicated dado cutting blades consist of a set of up to 8 individual blades. Multiple cutters are "stacked" between two outside blades. The width of the dado is determined by the combination of cutters that are “stacked” together. The dado is cut in a single pass leaving a smooth and square channel in the face of the workpiece as shown on Page 40. Stacked dado blades are the most expensive option but are worth considering if your projects require a lot of visible dado cuts. A typical stacked dado blade is shown in Figure 48. Figure 48. Optional dado blade. • Wobble Dado Blade—Also a dedicated dado blade, a wobble blade usually consists of a single blade that is tilted on the arbor shaft while it is spinning. The channel is cut in the face of the workpiece as the blade passes through its pre- adjusted width of travel. Wobble blades are an inexpensive option when visibly pleasing channels are not a concern. Moulding Heads: A moulding head is a cutter- head that attaches to the arbor and holds individual moulding knives. They should only be used by professional woodworkers with training beyond the scope of this manual. This section on blade selection is by no means comprehensive. Always follow the saw blade manufacturer's recommendations to ensure safe and efficient operation of your table saw. Figure 49. Various saw tooth cutting profiles. G1022 Series Table Saws -37 Crosscutting A crosscut is a cut against the grain direction of the workpiece. Crosscutting man-made wood products like plywood is performed by cutting parallel to the shortest side. Keep the blade guard in the down position at all times. Failure to do this could result in serious personal injury or death. To make a 90° crosscut using the miter gauge: 1. Adjust the miter gauge to the 90° position. 2. Adjust the fence completely away from the cutting operation. 3. Position the miter gauge in one of the two miter slots. 4. Adjust the blade height so the highest saw tooth protrudes approximately 1.4" above the workpiece. 5. Hold the workpiece against the miter gauge and line up the cut with the blade. 6. Turn on the saw and allow it to come to full speed. 7. Hold the workpiece firmly against the face of the miter gauge and ease it into the blade as shown in Figure 50. Turn off the saw and allow the blade to come to a complete stop before removing the cut-off piece. Failure to follow this warning could result in serious personal injury Figure 50. Cross-cut operation. -38- G1022 Series Table Saws Ripping A rip cut is a cut with the grain direction of the workpiece. Ripping man-made wood products like plywood is performed by cutting parallel to the longest side. Keep the blade guard in the down position at all times. Failure to do this could result in serious personal injury or death. To make a rip cut: 1. Set the fence to the desired width of cut on the fence rail scale. 2. Adjust the blade height so the highest saw tooth protrudes approximately 1.4" above the workpiece. 3. Joint one long edge of the workpiece on a jointer. 4. Set up any safety devices such as feather- boards or other anti-kickback devices. 5. With the saw unplugged from the power source, rotate the blade to make sure it does not come into contact with any of the safety devices. 6. Plug the saw into the power source, and turn on the saw and allow it to come to full speed. 7. The jointed edge of the workpiece must be slide against the fence during the cutting operation. Stand to the left of the blade line-of-cut when ripping a board. Serious personal injury could occur if kickback results. 8. Using a push stick, feed the workpiece through the saw blade as shown in Figure 51, until the workpiece is completely past the saw blade. When a small width is to be ripped an...