March/April 2013 Archives - Woodworking | Blog | Videos | Plans | How To https://www.woodworkersjournal.com/magazine-issue/marchapril-2013/ America's Leading Woodworking Authority Tue, 19 Dec 2023 15:46:22 +0000 en-US hourly 1 https://wordpress.org/?v=6.0.7 PROJECT: Making a Ladderback Chair https://www.woodworkersjournal.com/project-making-a-ladderback-chair/ Thu, 10 Aug 2017 17:00:31 +0000 http://rocklerwj.wpengine.com/?p=39013 Building a chair is always a challenge regardless of your shop’s size. This ladderback is a classic project that will make you proud.

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A ladderback chair with dowels, mortise-and-tenons — and no metal fasteners.

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PROJECT: Make a Dovetailed Puzzle Box https://www.woodworkersjournal.com/project-make-dovetailed-puzzle-box/ Thu, 27 Jul 2017 16:35:21 +0000 http://rocklerwj.wpengine.com/?p=38836 This dovetailed puzzle box is challenging to make and fun to solve! Our expert's scrap stock turns into a baffling dovetailed box challenge.

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This small puzzle box doesn’t eat up a lot of material, it’s fun and a little challenging to make but won’t keep you in the shop for weeks, and it will appeal to anyone who tries to open it.

It’s symmetrical, with interlocking dovetail slides and keys. The sides are alike, as are the ends and the top and bottom. Which is really the top? How do you get it open? The answer may not be immediately obvious. For now, don’t try to solve it. Think about getting it made.

You’ll only need a couple feet of stock, depending on board width. So rummage through your stashes of scraps too good to toss. Joint and plane all the stock for the box to a 1/2″ thickness. Rip the sides and ends to width, and crosscut these four parts to length. Make sure you have some decent sized scraps, thicknessed along with the good stuff, to use for dialing in setups. Set the rest aside for now.

Making Rabbeted Miter Joints

Confirm the accuracy of your setups with test cuts: Start the corner joints by adjusting the rabbet bit height as you would for cutting a shiplap. For half of each joint, cut a rabbet as wide as the mating piece is thick. The other half of each joint requires the width of the rabbet to match its depth.

I elected to use rabbeted miter joints to assemble the sides and ends. The joint’s benefits are its clean appearance, its improved stress resistance over a plain miter joint, and particularly its ease of assembly. You can cut mitered rabbets on the table saw, but it’s less intimidating to make them on the router table. You’ll need a bit to cut rabbets and a chamfering bit to add the mitered ends.

The sequence, as shown in the photos, is as follows: First, you rabbet the parts. Then you bevel the ends of those rabbets — in effect, mitering them.

Bevel the ends of both the narrow and wide rabbets.

The depth for all the rabbets is half the stock thickness, in this case 1/4″. Put a straight bit in the router and carefully adjust the depth of cut to 1/4″. Make a test cut on a piece of the setup scrap; rip the scrap in two and put the pieces together in a shiplap. The faces must be flush with the bottoms of the rabbets tight together. If you’ve got a gap between the rabbets or if the faces aren’t flush, tweak the bit height and cut a new test. Then set the fence for the first round of rabbets.

Use the same setup as before, this time with a chamfer bit.

The rabbets cut across the ends of the box sides are half the stock thickness in width, or 1/4″. Slide the fence into position, and use the final depth-of-cut test piece as a gauge in setting it. You want only enough of the bit exposed to cut as wide as the depth. Again, confirm the accuracy of the setup with test cuts.

Rabbet the ends of both side pieces, backed up with a good-sized pusher to guide the workpieces through the cuts.

Now alter the setup for rabbeting the box end pieces. These rabbet widths match the stock thickness exactly. Using an end piece as a gauge, shift the fence to expose more bit. Once again, confirm the accuracy of the setup with test cuts. That done, cut rabbets across the box ends.

Beveling the Rabbets

The result is a miter with the registration benefits of a rabbet.

The bevels (or miters) are routed with a chamfering bit. When you fit the bit in the router, be sure to extend it far enough out of the collet. The bottom of the cutters must be 1/4″ above the tabletop to mill the bevels. As you adjust the height of the bit, use a workpiece to gauge the precise elevation. The terminus of the angled cutting edge must align with the rabbet bottom. Similarly, adjust the fence so only enough of the bit is exposed to cut the thickness of the rabbet projection.

Confirm your setup using the final rabbet test-cut scraps. Make any necessary adjustments before cutting the good parts. Back up the cuts to prevent blowouts.

The author used shop-made corner blocks and a band clamp to glue the box together. Don’t let appearances fool you: check the assembly’s squareness carefully and adjust it before the glue sets.

After sanding the parts and checking the fit, I assembled the box with glue, clamping it with a band clamp and four shop-made corner blocks. To make such blocks, cut a rabbet in a 1-1⁄4″-square strip, then chop it into four pieces, each about 2″ long. Wax the faces of the rabbets so the blocks don’t get glued to the box. As you tighten the band, measure the diagonals to ensure the box is square — you may need to coax it.

Make Rabbeted Tops and Bottoms

After the glue sets, pop off the band and corner blocks, clean up the edges of the box, and rip and crosscut the top and bottom to fit the box you’ve now got. I cut the two parts using a cutoff sled on the table saw, and I used the box assembly to set a stop for ripping, then crosscutting the parts accurately.

Cut 1/8″-deep, 1/2″-wide rabbets around the top and bottom (see Drawings), so these parts set slightly into the box. Glue the bottom to the box (not the top).

Rout Slots, Slides and Keys

Clamp back-up boards to the top (unglued) and bottom before making the first slot cuts in the box ends.

I routed all the dovetail slots, grooves, slides, and keys with a 3/4″ 14° dovetail
bit. I cut the wide slots in the box ends first, then routed and fitted slides to them. Put the bit in the router and adjust the cut depth to 3/8″. Plan to make the slots about 1-3⁄4″ wide (precision here is irrelevant). Set the fence 15⁄16″ from the tip of the cutter for the initial cut. Using its rabbet, position the top on the box. To prevent blowout damage, cut two pieces of scrap to cover the top and bottom. A clamp holds the package together and ensures you slide the same side of the box along the fence on each cut.

Three or four passes, flipping the box and moving the fence away from the bit each time, completes each wide slot.

Make a first pass, routing a dovetail groove through one end of the box. Then roll the box end-for-end and make a duplicate groove through the other end. Adjust the fence about 5/8″ further away from the bit and make second passes though both ends, widening the slots. A second fence adjustment and third cuts should be sufficient to complete the slots.

To make the slides, cut a strip of 1/2″-thick stock about 2″ wide and 7″ long. Leave the depth-of-cut setting unchanged, but move the fence to house the bit almost completely. A shallow first pass along each edge of the blank establishes the dovetail angle but leaves a shoulder above the bit to bear against the fence. A multi-pass cut-and-fit process, shifting the fence, whittles down the dovetail section without affecting the overall (fence-bearing) width of the blank.

Make the slides with the bit setting unchanged from routing the slots. If you use 1/2″ stock, a shoulder is formed that rides along the fence, allowing you to progressively adjust the fence and cuts while narrowing the slides.

Once the blank fits easily into either slot, cut it into two slightly overlong slides. Clamp the box in your bench vise, with a scrap tucked in to hold the slide in place, as shown. Plane down the slide flush with the box end’s face. Turn the box over and repeat the operation to finally fit the second slide. Sand the ends of the wide slides flush with the top and bottom of the box. Glue the slides to the box top (and only to the top, not to the box itself).

Eventually, the dovetail portion of the blank will be narrow enough to fit into the slots.

With them in place, you can now rout the key grooves across the box top and bottom. Milling them repeats the earlier process for routing the wide slots. Clamp scrap against the wide slides to prevent exit damage. Lower the bit to cut only 1/4″ deep, and set the fence to locate the groove in the center of the box. Plow grooves across the box top and bottom.

Plane the fitted slides to final thickness by hand, clamping the box — slide in place — in a bench vise with a scrap against the slide to immobilize it.

Make the keys the way you did the wide slides. Resaw or plane a 1″-wide strip of stock to 3/8″ thick. Rout the edges and fit the keys into the grooves. Plane them flush and trim them to exact length.

I applied Waterlox for finish, allowing it to dry for several days before rubbing it out with wax and #0000 steel wool.

Solution Step of Construction

Lay out the slot for the locking dowel in the bottom dovetail groove.

The solution to the box’s puzzle — how to open the thing? — is in the limited movement of the bottom key. It moves clear of one slide, but then stops with its far end sticking out. That movement aligns tiny notches in the key’s edges with the dovetail notch in the adjacent slide. Pull the top up, and the slides (they’re glued to the top, remember) pull up and off with it.

Mark the ends with an awl, then drill two holes through the bottom. Drill holes between the first two, and slide the box along the fence to “rout” it smooth.

The key’s movement is governed by a 1/8″-dia. dowel pin projecting into a short slot in the box bottom. Fit it by pulling the key out of the bottom and laying out the ends of the slot on the centerline of the dovetail groove. Drill the ends of the slot with a 3/16″ bit and then waste the material between them. Reinsert the key, aligning its ends flush with the box ends, then transfer the near slot end location to the key with a transfer punch or drill bit. Move the key to what will be the limit of its travel and score its edges to mark the two notches that must be pared. Pull out the key and drill a stopped 1/8″-dia. hole at the mark, then pare off the dovetailed edges. Reinsert the key, glue the pin into its hole, and fit the top and slides in place.

I left the key in the top unglued, as a kind of diversion. The key comes out, but the box just doesn’t open!

Click Here to Download the Materials List and Drawings.

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PROJECT: Mahogany Ladies’ Desk https://www.woodworkersjournal.com/project-mahogany-ladies-desk/ Wed, 07 Jun 2017 19:42:51 +0000 http://rocklerwj.wpengine.com/?p=37884 Graceful curves and delicate inlay give this attractive, three-drawered desk immediate appeal. Build it in just a few shop sessions.

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Graceful curves and delicate inlay give this attractive, three-drawered desk immediate appeal. Build it in just a few shop sessions.

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Pyrography and Woodturning https://www.woodworkersjournal.com/pyrography-woodturning/ Wed, 27 Feb 2013 22:05:19 +0000 http://wwj-dev.windmilldesignworks.net/?p=2683 Ernie Conover offers his suggestions for purchasing wood burning tools and shows off his techniques for how to make art and lettering by drawing on wood with pyrography pens.

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Ernie Conover offers his suggestions for purchasing wood burning tools and shows off his techniques for how to make art and lettering by drawing on wood with pyrography pens.

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How to Make Round Tenons on Square Chair Legs https://www.woodworkersjournal.com/make-round-tenons-square-chair-legs/ Wed, 27 Feb 2013 21:53:10 +0000 http://wwj-dev.windmilldesignworks.net/?p=2679 Woodworker's Journal Editor in Chief Rob Johnstone creates a simple router table jig that makes cutting round tenons on square chair legs easy and repeatable.

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Woodworker’s Journal Editor in Chief Rob Johnstone creates a simple router table jig that makes cutting round tenons on square chair legs easy and repeatable.

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