Figure 3-30. (A) Grooves are formed by using a rip fence extension to guide the workpiece, just as if you were doing a ripping operation. (B) Cosntruction details of a rip fence extension. Click on image to see larger view.
Grooves are U-shaped cuts that are made with the grain of the wood. They are made much like rip cuts, with the fence positioned to gauge the distance between the cut and the edge of the stock. Figure 3-30A shows a groove being cut in the surface of a workpiece. A feather board mounted on a rip fence extension helps to keep the workpiece down against the table.
Figure 3-31. A feather board keeps the workpiece against the fence so a groove can be cut in the edge.
To cut grooves in the edge of a workpiece, position a feather board in front of the dado accessory. Use a push block to move the stock (Figure 3-31).