Making Dado Cuts

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Like a rabbet, a dado can be made with either a table-mounted router and a straight bit, or a table saw and a dado cutter. The adjustments, however, are not quite the same. Adjust the width of the dado by changing the width of the cutter or the diameter of the bit; adjust the depth by raising or lowering the bit or cutter. Finally, position the dado by changing the position of the workpiece relative to the cutter.

There are several ways to guide the workpiece. If you're making a groove (cutting with the wood grain), use a fence to guide the workpiece over the bit or cutter. If you're making a dado (cutting across the grain), use a miter gauge. If the workpiece is too large to guide easily with a miter gauge, clamp a straightedge to the workpiece and use it to guide a portable router. (See Figure 3-9.)

In a pinch, you can cut a dado with an ordinary saw blade and some hand tools. Saw the sides of the dado to the proper depth and remove most of the waste with a chisel. Then clean up the bottom of the dado with a router plane.

How Make Cut Dado With Router

3-9 Use a portable router to make a dado or a rabbet if the board is too large to cut on a table saw or a table-mounted router. Clamp a straightedge to the workpiece to guide the router. Here, a shopmade T-square automatically aligns the straightedge at 90 degrees to the edge of the board.

3-9 Use a portable router to make a dado or a rabbet if the board is too large to cut on a table saw or a table-mounted router. Clamp a straightedge to the workpiece to guide the router. Here, a shopmade T-square automatically aligns the straightedge at 90 degrees to the edge of the board.

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In a pinch, you can cut a dado with an ordinary saw blade and some hand tools. Saw the sides of the dado to the proper depth and remove most of the waste with a chisel. Then clean up the bottom of the dado with a router plane.

Using a Router Plane

Whether you prefer to cut joints by hand or by machine, one of the most useful joinery tools is the router plane. This simple hand tool cuts the bottom of a rabbet, dado, groove, or mortise to a uniform depth. It wi 11 also cut the cheeks of a lap joint or a tenon. Use it to true up these joints or to remove a thin layer of stock to get a perfect fit.

plane to cut the bottom of a mornse, notch, or dovetail, or any joint where a uniform depth is essential. Here, the plane is used to shave the bottom of a hinge monise.

When cutting wide areas, such as the cheeks of a tenon, hold the plane so one pari of the base rests on the stocks surface, and the other overhangs the area to be cut. Press down firmly on the side that sits on solid stock. Cut with a sweeping motion, pivoting the plane so the iron travels in an arc.

To use a router plane, first adjust the depth of cut. Raise or lower the L-shaped plane iron so it protrudes the proper distance below the plane base.

Place the plane on the workpiece so the base rests on the surface and the plane iron hangs down into the cut. Then push the plane forward, shaving the bottom. Remove just, a little bit of stock at a time, no more than V32 inch.

plane to cut the bottom of a mornse, notch, or dovetail, or any joint where a uniform depth is essential. Here, the plane is used to shave the bottom of a hinge monise.

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Responses

  • marta
    How do i plane dado cuts?
    8 years ago

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