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AW Extra 11/29/12 - 3 Tapered Legs on the Jointer


3 Tapered Legs on the Jointer

Advanced jointer techniques yield smooth, consistent tapers.

By Seth Keller

After I learned to cut tapered legs on the jointer, I never went back to my bandsaw or tablesaw. Legs cut on the jointer take less time and, best of all, require a whole lot less sanding. This is especially true with the spade-foot design in which the jointer’s cutterhead automatically creates the sweep above the spade foot. The same leg cut on a bandsaw would require hand shaping and sanding to finish the profile.

All three legs shown here are made from 1-3/4 x 1-3/4 x 29 in. stock. The first leg I’ll explain how to make is the familiar long taper found in many Shaker designs. Often, this leg has the taper on only two adjoining faces. The second leg has a short taper used on cabinets with legs and on some stylized modern pieces. The last profile, a tapered leg with a spade foot, builds on the techniques used in making the first two legs. This remarkable shape is both elegant and refined. It hints at Hepplewhite and Sheraton furniture designs from the eighteenth century and can make a piece distinctive and stylish even today.

The technique involves dropping a leg down on a running jointer. That may seem a bit scary at first, but stop and start blocks make the procedure safer than with most tablesaw taper jigs I’ve used and more accurate than for any taper I’ve done on a bandsaw.

It is a good idea to use a test leg to set up the cuts. As always, mill the mortises before you shape the legs. Finally, make sure your knives are sharp and your jointer is well-tuned.

1. Long taper

1. Lay out the desired taper on all four sides of the leg. Make alignment marks 1 in. below the top of the taper. My taper goes from 0 in. to 1/2 in. at the foot.

2. Position the start block on the infeed table using the alignment mark as a reference (Photo 1). The start block gives you a consistent start point for each cut and provides a pivot point for safely lowering the leg blank onto the jointer.

3. Set your jointer’s depth of cut to 1/8 in. With push sticks ready, turn on the jointer. Place the foot of the leg firmly against the start block. Swing the guard out of the way and lower the leg (Photo 2).

4. Complete the cut (Photo 3). Make three or four passes on the same side of the leg, closing in on your layout line.

5. Rotate the leg 90 degrees into the fence and cut the adjacent taper. Continue until all four tapers have been cut.

6. After all of your legs are tapered, you’ll likely see a small divot from the cutterhead where the taper cut begins. To clean this up, remove the stop block and reset the depth of cut to about 1/64 in. Make a single pass on each side to clean up the divot (Photo 4).

7. A little sanding completes the leg.

Click any image to view a larger version.

1. To set the start block, position the leg blank on the jointer with the alignment mark centered over the cutterhead. The alignment mark is placed 1 in. below where you want the taper to begin. Butt the start block up to the leg and clamp the block onto the infeed table.

2. Start the taper cut by slowly lowering the leg onto the jointer with the foot set against the start block. Almost no wood is cut when you first put the leg stock down. The start block prevents kickback. Have your push sticks ready.

3. Create the taper in several passes. Feed the leg slowly over the knives. Use a push block that’s taller than the fence to maintain light downward pressure on the infeed table. To keep the cut square, use a push stick to hold the leg tightly against the fence on the outfeed table.

4. Complete each taper with a shallow cleanup pass using the jointer in a traditional manner. Keep the top of the leg pushed tightly against the fence to ensure a square cut.

2. Short taper

1. Lay out the taper on the leg blank. Construct a sled that angles the leg up on the jointer so the taper line is parallel with the bed (see photo, right).

2. With the jointer turned off, set the cutting depth to about 1/8 in. Place the sled on the outfeed table and swing out the guard. Place the leg on the sled so it is suspended over the cutterhead and rests on the infeed table.

3. Turn the jointer on and make the cut, keeping downward pressure on the foot and the leg where it contacts the sled. (see photo, right). Make three or four passes on the same side of the leg, until the cut reaches the layout line. Rotate clockwise and cut the same number of passes on each side of the leg.

4. Sand the leg smooth.

A simple sled angles the leg on the jointer to create the short taper. Position the leg on the sled so the leg bridges the cutterhead. Slide a piece of 1/2-in. plywood under the top of the leg until the taper layout is parallel with the infeed table. Attach a stop to the sled at that point.

3. Spade foot and taper

1. Lay out the taper and spade foot on the leg. Unplug the jointer and position a start block as you did for the long taper (see “Long Taper,” Photo 1, above).

2. Clamp a stop block on the outfeed table (Photo 1). The stop taper is about 1/2 in. deep, so set the depth of cut to 1/2 in.

3. Turn on the jointer. With its foot against the start block, lower the leg and make the cut (Photo 2). Repeat for all four sides. Now you have a stopped taper with a square block on the end. Don’t worry if you see some tearout at the top of the foot; it’ll be cleaned up when the spade foot is cut.

4. To create the spade foot, remove the start and stop blocks from the jointer. Lay out the spade foot. Make a sled similar to the one used for the short taper. Reset the depth of cut to approximately 1/8 in. and cut the short tapers that form the spade foot (Photo 3). Be sure to hold the top of the leg tightly against the fence to ensure that your tapers start square across the face of the foot.

All that’s left is a bit of hand-sanding to smooth the faces and break the edges. With a few passes on a jointer and a little light sanding, you’ve created an attractive leg with a complex shape.

1. The spade foot starts with a stopped taper. To set the stop block on the outfeed table, position the leg on the jointer so the taper’s end aligns with the arc of the cutterhead (see photo, above). Set the start block the same way you did with the long taper.

2. Push the leg over the cutterhead. Slow and steady is the pace to take. You can cut the entire 1/2-in. depth in one pass.

3. Create the foot using the same sled technique you used on the short taper. I added a 3/4-in. board to the short taper’s sled to make this sled for the spade foot.

This story originally appeared in American Woodworker January 2007, issue #126.

January 2007, issue #126

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