Tip #50
Using a Jointer (continued)
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Tapering

Figure 6-20. These are examples of forms you can produce by using the jointer for tapering. They can be used as legs for tables, chairs, and so on.

Special jointer techniques allow you to form tapers like those shown in Figure 6-20.

Almost always, the procedure calls for a stop block that is used to position the stock for the start of the cut. The stop block can be clamped directly to the jointer fence.

Use an extra-long fence extension with stop blocks like the one shown in Figure 6-21 when a tapered cut must start and stop on the stock being cut. The extension, which is diagrammed in Figure 6-22, is made long enough to provide extra support for the stock and the blocks are held in place with clamps so their position can be adjusted to suit the taper being cut.

Figure 6-21. Tapering cuts are easier to do when you work with an extra-long fence extension that has its own stop blocks.

To cut a taper that is, for example, 10" long and 1/4" deep, set the infeed table for a 1/4" depth of cut, and clamp the stop block 10" away from the topmost point of the knives' cutting circle. Brace the end of the stock against the stop block, pivot the guard, and then slowly lower the stock to make contact with the outfeed table. Turn the machine on. Use a push block and push stick to gradually feed the stock while you maintain contact between the stock and the infeed and outfeed tables.

Figure 6-22. Construction details of a fence extension used for tapering. Click on image for larger view.

Tapers that are longer than the infeed table must be handled differently. If, for example, the taper is to be 20" long and 1/4" deep on all four sides, mark the stock into two 10" divisions and set the depth of cut at 1/8". Place the stock so the line indicating the first 10" division is at the uppermost point of the knives' cutting circle and make two passes on all four sides. This will result in a taper 10" long and 1/4" deep. Reposition the stock at the 20" mark. Then make two passes on all four sides. You will then have a taper- 20" long and 1/4" deep.

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