Woodstock W1824 manual Dado Cutting, Dado Blade Installation, Cutting Dados with a Dado Blade

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Dado Cutting

Commonly used in furniture joinery, a dado is a straight channel cut in the face of the workpiece. Dadoes are "non-through" cuts that can be made with a dado blade or a standard saw blade. Figure 49 shows a cutaway view of a dado cut being made with a dado blade.

The included dado table insert must be installed and used when a dado blade is installed—unless a zero clearance table insert is used instead.

Dado Blade Installation

1.DISCONNECT SAW FROM POWER!

2.Remove the standard table insert, the blade guard assembly or riving knife, and the saw blade.

3.Attach and adjust the dado blade system according to the dado blade manufacturer’s instructions

4.Install the dado table insert.

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Figure 49. Illustration of a dado cut.

DO NOT make through cuts with a dado blade. Dado blades are only intended for non-through cuts. Failure to heed this warning could result in serious injury.

Dado blades have a higher risk of kickback than normal blades because their larger size applies stronger forces to the workpiece. This risk increases relative to the depth and width of the cut. To minimize your risk of serious personal injury, ensure that stock is flat and straight, and make multiple light cuts (rather than one deep cut) to achieve the desired cutting depth.

Cutting Dados with a Dado Blade

Because dado blades are much wider than standard blades, they place a greater amount of force against the workpiece when cutting. This additional force increases the risk of kickback, requiring the operator to take additional steps when cutting to keep their injury risk at an acceptable level.

Figure 50 demonstrates the sequential process of making multiple, light cuts that get progressively deeper. The actual number of cuts used should be determined by workpiece hardness, total dado depth, and feed rate. In general, if you hear the motor slow down during the cut, you are cutting too deep or feeding too fast.

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Dado Blade Cut 1

Fence

Workpiece

Cut 2

Fence

Workpiece

Cut 3

Fence

Workpiece

Finished

Dado Cut

Fence

Workpiece

Figure 50. Example of cutting a dado with multiple light cuts, instead of one deep cut.

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