NOTE: When making compound miters (with blade tilted) use the miter gauge in the right hand slot to provide more hand clearance and safety.

3.Have the blade extend only 1/8" above the top of the workpiece. Exposing the blade above this point can be hazardous.

Dado Cutting

Dadoing is cutting a wide groove into a workpiece or cutting a rabbet along the edge of a workpiece. A dado insert, shown in Figure 36, is necessary for this type of operation.

Do not use the standard table insert for dadoing operations.

The process of cutting 1/8" to 13/16" grooves in workpieces is accomplished by the use of a stacked dado blade set or an adjustable blade mounted on the saw arbor.

By using various combinations of the stacked dado blades, or properly setting the dial on an adjustable blade, an accurate width dado can be made. This is very useful for shelving, making joints, tenoning, etc.

The guard, splitter, and anti-kickback pawls supplied with the saw should be used for all cutting operations where they can be used. When performing operations where the guard can not be used, as in some dadoing operations, alternative safety precautions should be taken. These include push sticks, feather boards, filler pieces, fixtures, jigs and any other appropriate device that can be utilized to keep operator's hands away from the blade.

Upon completion of the operation requiring removal of the guard, the entire guard assembly must be placed back on the machine in its proper working order.

Never use a dado head in a tilted position. Never operate the saw without the guard, splitter and anti-kickback pawls for operations where they can be used.

Safety Devices

Feather Board (Figure 37).

The feather board should be made of straight grain hardwood approximately 1" thick and 4" to 8" wide depending on the size of the machine. The length is developed in accordance with intended use.

Feather boards can be fastened to the table or rip fence by use of C-clamps.

Figure 36

Figure 37

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Powermatic 66 Dado Cutting, Safety Devices, Do not use the standard table insert for dadoing operations
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66 specifications

The Powermatic 66 is an iconic table saw that has earned a reputation for excellence among woodworkers and professionals alike. Introduced in the mid-20th century, this machine combines finely crafted engineering with user-friendly features, making it a staple in many workshops.

One of the standout features of the Powermatic 66 is its robust 3-horsepower motor. This powerful motor not only ensures efficient cutting but also provides the necessary torque for handling dense hardwoods and other tough materials. The motor is paired with a precision-ground cast-iron tabletop, which measures a generous 27 inches by 40 inches, providing ample workspace for larger projects while delivering stability and reducing vibration during operation.

The saw's design incorporates a unique cabinet-style base that offers exceptional durability and strength. The all-steel construction enhances rigidity, which aids in achieving precise cuts. Additionally, the heavy-duty base includes storage for accessories and blades, catering to the needs of woodworkers who value organization and convenience.

Another key feature of the Powermatic 66 is its advanced fence system, the Biesemeyer-style fence. Known for its accuracy, this fence glides smoothly along the rails and can be easily adjusted to different widths. It locks securely in place, allowing for repeatable cuts and maximum efficiency. The measuring scale is clearly marked, further enhancing usability.

The saw also boasts a 10-inch blade, capable of cutting through a variety of material thicknesses. The Blade Enclosure System allows for easier access when changing blades and minimizes dust buildup, which is critical for maintaining a clean work environment.

Safety is prioritized with features that include an anti-kickback pawl system and a blade guard, ensuring a reduced risk of accidents during operation. The Powermatic 66’s ingenuity extends to its dust collection capabilities, with an integrated port designed to work efficiently with shop vacuums, helping maintain cleanliness in the workspace.

In summary, the Powermatic 66 exemplifies the combination of power, precision, and safety, making it an indispensable tool for woodworkers. With its heavy-duty construction, innovative technology, and user-friendly features, the Powermatic 66 stands as a hallmark of quality in the woodworking industry. This saw is not just a machine; it’s a reliable partner for those who are serious about their craft.
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