A Publication of August Home - MetosExpo
Transcription
A Publication of August Home - MetosExpo
A Publication of August Home looking inside Table of Contents from our readers lie Tips & Techniques .............. .4 Perfect Finger Joints ........... .39 With a shop-built jig and a dado blade, you can cut tight-fitting finger joints on the table saw. all about Choosing Drawer Liners ......... .8 Here's everything you need to know to select the best drawer liner for your next project. working with tools Troubleshooting Your Jointer . ... .42 We'll show you how to keep this essential power tool cutting straight and true. tools of the trade 7 Essential Layout Tools . ....... .10 An accurate layout starts with the right tools. All it takes is this basic collection. finishing room Using Glazes . ................ .46 Learn how the technique of glazing can enhance the color and .appearance of a project. woodworking essentials Gluing Up Strong Joints . ....... .12 When you follow a few simple guidelines, longlasting glue joints are a sure thing. details of craftsmanship Twin Tenons . ................. .48 When maximum strength is the goal, this timetested joint can't be beat. techniques from our shop Using Rail & Stile Bits . ......... .14 These handy router bits take the hard work out of building great-looking frame and panel doors. tips from our shop Shop Notebook . .............. .28 in the mailbox Q &A ........................ 50 hardware and supplies Sources ....... I ••••• I •••••••• 51 Display Shelf page 18 Folding Step Stool page 22 2 Woodsmith o. 183 r editor's note Sawdust S everal years ago, I ran across a small, wooden tool chest - the projects weekend project Display Shelf . ................ .18 If you're looking for a productive way to spend a weekend, building this small display shelf might be the answer. The ciassic design and straightforward woodworking add up to a great project. designer series project Folding Step Stool .... . ....... .22 Here's a project that will satisfy the "tinkerer" in you. Using a combination of purchased and shop-made hardware, this sturdy, practical folding step stool goes together in a snap. kind that every machinist probably owned at one time. Now, I've always admired these old to~l chests. The shallow drawers are perfect for storing small tools. But I liked this particular chest for more than just the purpose it served. The details on it reminded me of the craftsmanship of a bygone era - the quartersawn oak, the finger-jointed case, the decorative V-grooves on the drawer fronts, and the frame and panel front and back. For some time, I've wanted to feature a similar tool chest in Woodsmith . But the problem was finding a source for the distinctive hardware. Recently, hbwever, I came across a company that offers authentic-looking hardware, just like that used on many of the original machinist's chests. Once we had the hardware in hand, it was just a matter of working out all the construction details. If you take a look at the photo below, I think you'll agree that the finished result was well worth the effort. And it makes a great heirloom project Machinist's Chest ............. .30 Patterned after a classic tool chest, this project is the perfect way to show pride in your tools, as well as your craftsmanship. It's guaranteed to be a treasured heirloom. storage cabinet for more than just tools. If you're looking for something a little less ambitious, we've got two other projects in this issue that fill the bill. One is a simple display shelf. It's built with sliding dovetail construction and can be put together in a weekend. You can read about it on page 18. The other project in this issue is a folding step stool. The challenge here was to come up with a sturdy stool that can be folded up when not in use. After a few prototypes, we came up with a clever design that uses common hardware and a few shop-made fittings. The nice thing about these projects is that you won't need much in the way of time or lumber to build either of them. And with these two excuses out of the way, hopefully, you'll be inspired to get busy building one of these great projects in your shop. ets you know there's more information online at There you'll see step-by-step videos, technique and project anima , bonus cutting diagrams, and a lot more. Machinist's Chest page 30 Woodsmith.com Woodsmith 3 from our readers Tips& Techniques Digital Drill Press Setting the depth on my drill press using the factory installed gauge is not very accurate. I like to know the precise drilling depth before I turn on the drill press. So I installed a Wixey Digital Readout gauge on my drill press. This gives me an accu rate depth setting every time. As you can see in the photo at left and the drawing below, attaching the gauge to the drill press is a simple task. Fi rst, I attached a mount i ng Digital display Digital display mounting block attached to drill press with rare-earth magnets ' ~·-lO star knob Arbor moun 'ng block attached to stop collar block to the stop collar just above the chuck. To do this, I drilled a hole in the block to fit over the collar. Then I cut a slot in the front so I could pinch it around the collar with a bolt and threaded knob. Finally, I screwed the sensor scale to the edge of the block. The display and sensor are attached to the drill press housing with two magnets that are mounted in woodblocks (drawing below). To use the gauge, first install a bit and then lower it until it contacts the workpiece. Without moving the bit, zero out the display. Then turn on the drill press and lower the bit. The display will tell you exactly how deep a hole it's drilled. It's accurate even if you lift the bit to clear out the chips in the hole. Now I can drill holes to an accurate depth. Brad Townsend Byron, Illinois 4 Woodsmith No. 183 No. 183 June/July 2009 PUBLISHER Donald B. Peschke EDITOR Terry J. Strohman MANAGING EDITOR Vincent Ancona SENIOR EDITOR Ted Raife ASSOCIATE EDITOR Dennis Perkins ASSISTANT EDITOR Carol Beronich CONTRIBUTING EDITORS Bryan Nelson, Ph il Huber, Randall A. Maxey .. Magnets. Rare-earth magnets are used to grip the sides of the can and to hold the brush in place. .. Less Finish. As the finish is used and the level decreases, the brush holder can be lowered into the can. Jack Donahue Thousand Oaks, California EXECUTIVE ART DIRECTOR Todd Lambirth SENIOR ILLUSTRATORS David Kreyling, Dirk Ver Steeg, Harlan V Clark, Peter J. Larson, David Kallemyn Adiustable Brush Holder Sometimes, my work is interrupted when I'm in the middle of applying a finish to a project. I've never found a good place to stash the brush while I attend to the phone call or other distraction. So I made this handy adjustable brush holder that keeps the bristles of the brush immersed in the finish. As you can see in the drawing at right, rare-earth magnets are the key to this simple holder. I used two magnets on either side of the holder to pinch the can between the inner and outer stabilizer blocks. The third magnet "grips" the ferrule of the brush. The holder separates for easy removal. Now I never have to worry about the brush drying out, getting finish on the edge of the can, or messy clean ups. EDITORIAL INTERN Catherine Seiser SENIOR GRAPHIC DESIGNER Bob Zimmerman GRAPHIC DESIGNER Shelley Cronin CREATIVE DIRECTOR Ted Kralicek SENIOR PROJECT DESIGNERS Ken Munkel, Kent Welsh, Chris Fitch, Jim Down ing, Mike Donovan PROJECT DESIGNER/BUILDER John Doyle SHOP CRAFTSMEN Steve Cu rtis, Steve Johnson 14"-20 SENIOR PHOTOGRAPHERS Crayola England, Dennis Kennedy star knob ASSOCIATE STYLE DIRECTOR Rebecca Cun ningham SENIOR elECTRONIC IMAGE SPECIALIST Allan Ruhnke PRODUCTION ASSISTANT Minniette Johnson VIDEO EDITOR/DIRECTOR Mark Hayes, Nate Gruca Woods mi th® (ISSN 0164-4114) is published bimonthly (Feb., Apr., June, Aug., Oct., Dec.) by Augus t Home Publishing Company, 2200 Grand Ave, Des Moines, IA 50312. Woodsmith® is a registered trademark of A ugust Home Publishing. Copyright© 2009 August Home Publishing Company. All rights reserved. Subscriptions: Single copy: $4.95. One year s ubscription (6 issues), $24.95. (Canada/ International add $10 per year, U.s. funds.) Canadian Subscriptions: Canada Post Agreement No. 40038201 . Send change of address Inner stabilizer block (IVs" x lli2") information to PO Box 881, Station Main, Markham, ON L3P BM6. Canada BN 84597 5473 RT Periodicals Postage Paid at Des Moines, lA, and at additiona1 offices. Postmaster: Send change of address to WoodsmitiJ, Box 37112, NOTE: All parts made from 3;4"-thick stock Boone, IA 50037-2112. WoodsmithCustomerServ.com SUBMIT YOUR TIPS ONLINE ONLINE SUBSCRIBER SERVICES If you have an original shop tip, we would l i ke to hear from you and consider publishing your tip in one or more of our publications. Go to: • • • • • • • Woodsmith.com VIEW your account information RENEW your subscription CHECK on a subscription payment PAY your bill CHANGE your mailing or e-mail address VIEWIRENEW your gift subscriptions TELL US if you 've missed an issue Click on the link, "SUBMIT A TIP" CUSTOMER SERVICE You'll be able to tell us all about your t i p and upload your photos and drawings. You can also mail your tips to "Woodsmith Tips" at the editorial address shown at righ t. We will pay up to $200 if we publish your tip. Woodsmith.com SUBSCRIPTIONS Customer Service P.O. Box 842 Des Moines, IA 50304-9961 subscriptions@augusthome. com Phone: 800-333-5075 EDITORIAL Woodsmith Magazine 2200 Grand Avenue Des Moines, IA 50312 woodsmith@woodsm ith.com Printed in U .s.A. Woodsmith 5 more tips from our readers 114"-20 insert SIDE VIEW Grind end to 25° bevel and hone until sharp a. NOTE: 2° bevel allows the blade to cut Router Plane Occasionally, I need to clean up narrow dadoes or grooves on a project. So I came up with a simple shop-made router plane that I can use for this purpose. It's made out of nothing more than a few scra ps of wood and an Allen wrench. The body of the router plane is made of two separate pieces, as shown above. After cutting the base and handle to shape, they're screwed together. Then a hole is drilled through the body for the cutter. To make the cutter, I used a grinding wheel and sharpening stone to form a bevel on the short leg of an Allen wrench. A thumbscrew and a threaded insert holds the cutter in place. For just a few dollars, I have a quality tool that will last a long time. photo above, I'm able to sand consistent chamfers quickly and easily. The jig is just a base with a dado cut in it to hold a sl i ding sanding block. I attached a fence at a 45° angle to hold the workpiece. The small workpiece is held at the correct angle by the fence. It works on rectangular plugs as well as square plugs. The sand ing block slides back and forth, creating the chamfer on the end ofthe workpiece. To use the jig, I rotate the workpiece 90° and sand each edge to get even chamfers on all sides. Once the chamfers are created, I just trim the plug from the blank. Jeff Webster Lexington, South Carolina Plug Sanding Jig I needed a quick, easy way to form a chamfer on the end of some very small workpieces. I intended to use them for plugs (inset photo). Working with sma ll pieces is a challenge. But with the jig you see in the 6 Woodsrnith Jordan Hutchinson West Des Moines, Iowa No. 183 Quick Tips Saving Wet Glue Roller When applying glue to large areas, I find a roller is an ideal tool. And Ilike to have my roller ready to go at a moment's notice. So I use a plastic container to keep my glue roller fresh and accessible, as you see in the photo at right. The air-tight container holds a plastic paint pan and a foam roller. This roller has a rust-proof stainless steel and plastic handle. The glue stays moist and ready to apply inside the container.The best part is HAND PlANE PROTEalON I don't have to bother with clean up every time I glue something. This means I save time, and I also don't wash good glue down the drain during clean up. George Peter Harvey De Winton, Alberta DannyComsa Anaheim, California Thin Strip Gauge Cutting thin strips on the table saw is always a challenge and sometimes a safety issue. That's why I made this simple gauge that let's me cut accurate thin strips on the waste side of the blade. The gauge is nothing more than a piece of plywood with a hardwood runner that fits in the miter gauge slot of your table saw. Screws on one edge of the plywood act as stops to set up for different thicknesses of strips. With the gauge in the miter slot, the screws are adjusted referencing from the saw blade. To use the gauge, place the workpiece against the appropriate screw and move the rip fence against the workpiece, as shown at left. Then remove the gauge and make the cut. Rod Enos Chubbuck, Idaho WiN ThIS BOSCH IMPACTOR DRIVER That's right, send us your favorite shop tips. If your tip or technique is selected as the featured reader's tip, you'll win a Bosch impact driver just like the one shown here. To submit your tip or technique, just go online to www.woodsmith.com and click on the link, "SUBMIT A TIP:' You can submit your tip and upload your photos for consideration. Woodsmith.com When it's time to use a hand plane to smooth out a workpiece, I don't like to set the plane directly on the workbench and risk damaging the cutting edge. So I cut a large piece of carpet pad to work on. I cut the pad so it's large enough to hold my workpiece and rest the plane. Not only does the pad protect the blade, but my workpiece is protected from scratches that could transfer from debris on my workbench. Plus, the pad keeps the workpiece from slipping. The Winner! Congratulations to Brad Townsend, winner of the Bosch Impactor driver. To find out how you could win a Bosch drin:'l', check out the rmation on the Woodsmith STUBBORN PHIWIIS-HEAD SCREWS Sometimes when I'm trying to remove a stubborn Phillips-head screw, I have trouble with the screwdriver slipping. That's when I use a little trick I learned from an experienced auto mechanic. My mechanic told me to place a tiny bit of valve grinding compound on the tip of the screwdriver. The compound grabs the head of the screw and it will tum without stripping the head. Wayne Allison Fredricksburg, Texas PROTEa PlYWOOD VENEER Plywood is a great building material for projects. But you alw ays run the risk of scratching the thin veneer, which causes extra sanding on an already smooth surface. To protect the veneer, I cover the sheet with plastic, self-adhesive carpet protector. It's the stuff that builders use to protect carpeting during remodeling projects. I've found it at home centers in a couple different widths. Once the plywood is covered, you can machine it as you normally would. Then simply peel the plastic off before assembly. It also protects against tear out. Don Grimaldi st. Charles, Illinois 7 choosing DralNer Liners Whether you're storing tools or protecting fine jewelry, you have a lot of materials to choose from when lining drawers. Your project is built and now it's time to add the finishing touches. Most often that's a few coats of finish. But if the project includes drawers, you'll also need to choose an appropriate lining. I like to make the choice of which material to use for the lining based on what I plan to store in the drawer. If the drawer is going to hold tools or other heavy items, a durable liner is the best option. If it's made to hold jewelry or silverware, you might want to consider a soft, plush fabric to line the drawers. There are some materials, like felt, that perform well for both uses. FELT. Felt is an extremely durable fabric. It's soft, it cushions well, and it's inexpensive. When I use felt to line a drawer, I usually apply it to hardboard or heavy posterboard with spray adhesive, as shown in the main photo. You can cut the lining to fit once it's attached to the backing. Once it's mounted to a backing, it slips in the drawer and I can replace it later "ith ease. Before you purchase felt for lining drawers, you should know that not all felt is created equal. Look for felt that's made from 100% wool. It stands up to a lot of abuse and it resists dirt and stains. The felt you find in craft stores is usually made from nylon, which isn't as durable as wool felt. But it is available with adhesive on the back. An advantage if you don't want to back the lining. VELVET. Velvet is another choice for fabric drawer liners. It's available Open-Weave Vinyl ~ . ; ~ No. 183 in a variety of colors with adhesive backing. I find this material is best used for jewelry boxes or flatware storage. It's just not durable enough for shop tools. Like felt, I usually apply this drawer liner material to posterboard backing. This way, it can be easily replaced if it shows wear. LEATHER AND SUEDE. If you want to line drawers with a more rugged material, nothing beats leather or suede for holding up under heavy use. These thick materials work well for use with tools. Suede also has non-slip properties to keep items from shifting in the drawer. It's not necessary to back leather or suede, as it holds its shape when you cut and fit it. Plus, it resists dirt and oil and cleans up easily. The only drawback to this material is that it will cause silver to tarnish, so you shouldn't use it to line jewelry boxes or silverware chests. But it won't harm tools. CORK. Cork is one of the most versatile materials made for lining drawers. This material holds up best to sharp tools and won't harm fine silver. It's available in different thicknesses; with or without an adhesive back, usually in rolls. It cuts easily with a utility knife, and you can back it with posterboard for easy replacement or you can attach it directly to the drawer, since it doesn't shift or stretch. VINYL Vmyl matting has a variety of uses around the shop. And lining tool chest drawers is just another great idea. • Adhesive-backed fabric is available in This material is made several colors and adheres easily to in several finishes from the drawer bottom or a backing. textured to open weave. i Drawer liner Vinyl takes a lot of abuse from tools and remains in good shape. I also like it because I can cut it to fit the drawer and just drop it ·in without having to use a backing. And_since it's a high-friction material, it won't slide around. So you don't have to worry about gluing it down. FLOCKING. Spray-on flocking is another good way to line drawers for storage. You can read more about this product and how to apply it in the box below. Once you decide which of these materials is right for your project, you'll find more information about where to find them in Sources on page 51. In a short time you'll have the finishing touches on your project and your tools or fine silver will be safely stored. m material can be trimmed using a posterboard ba.cki(tg as==== a guide. How-To: Inexpensive Flocking Spray-on flocking is in a class by itself. This two-part drawer liner goes on with colored adhesive as the base coat and then tiny fibers are sprayed directly onto the glue to make a drawer liner that's perfectly formed to the drawer. As a result, the application is easy and accurate. You don't have to spend time measuring or applying glue. Just apply the adhesive .to the surface you want to cover and use the handy and inexpensive applicator to apply the fibers (photo at right). This drawer lining material is available in a variety of colors. It's great for tools as well Woodsmith.com as jewelry or fine silverware. Plus, it adheres to any shaped form, so you can make custom-fitting forms and add the flocking to every nook and cranny in your project (photo at right). The flocking will dry overnight and any overspray can be collected for reuse. Air Pump Applicator ..J One bag of flocking covers 8-10 square feet. The flocking will dry overn ight and you can collect the overspray for lat e r use. Woodsmith 9 essentra I'" Layout Tools With a small collection of the right tools, you can handle just about any layout task - efficiently and accurately. Almost every woodworking task starts with an accurate layout. Without these guidelines to follow, the table saw, drill press, band saw, and all your other cutting and shaping tools aren't of much value. Often, the first tools you pick up when starting a project are the ones used to layout the parts and joinery. So having a complete set of these essential tools is key to getting the job started down the right road. Here's a short list of the basic layout tools that I wouldn't want to be without. 1 Combination Square A high-quality, 12" combination square is surely one of the most versatile layout tools you can own. Not only can it be used to mark accurate 90° and 45° lines (photo at right), the sliding blade can be used for measuring, as a short straightedge, and as a layout gauge. Don't skimp on this one. Buy the best combination square you can afford. It'll get used every day and last a lifetime. 2 Tape Measure For making large scale layout measurements quickl}~ a 12' or 16' steel tape measure can't be beat (photo at left). The end of the tape hooks firmly over the end of a workpiece 10 fo r easy outside measurements, but also adapts to inside readings. Look for a tape with a %"- or 1"wide blade that has fine, easy-toread markings, then take good care of it. If the tape starts to wear or the hook gets damaged, replace it. No. 183 3 Ruler A 6" steel ruler with etched graduations comes in handy for all sorts of precise layout tasks. The advantage over a bigger rule is in the compact size, thin blade, and the distinct, easy-to-read markings. You can use it lying flat, as shown at right, or turn it on edge to get a better read when necessary. My rule earns its keep when laying out dovetails, mortises, tenons, and any other joinery for which dead-on accuracy is a must. I keep it in my apron pocket at all times. 4 Straight~dge Project parts (and the layouts needed to cut them to shape) come in all different sizes. When working on a project that requires large panels, a 36" or 48'Laluminum===== straightedge is invaluable. The essential job of a long straightedge is to connect measured marks with a layout line. For this, you don't need an expensive "machinist's-quality" tool. Just find one that's straight and rigid. 6 5 Marking Knife Compass A pencil line is adequate for many layout tasks, but for more demanding work, the fine, incised line made by a marking knife is more accurate. A marking knife is my choice for scribing dovetail pins from the tails, or marking the shoulders of tenons and the cheeks of mortises, as shown at right. The sharp line left by a marking knife leaves no doubt where to make a cut. The shallow" groove" created by the knife can even be used to position a chisel when cleaning up or fine-tuning a joint. Not all woodworking is done along straight lines. It's often the graceful curves you add to a project that attract the most attention. To draw these arcs and circles easily and accurately on a workpiece, you need to keep a compass on hand. The inexpensive compass shown at right (my favorite) has springloaded arms and a screw adjustment that allows you to easily zeroin on a radius up to 4%". If your projects often have larger curves, consider adding a beam compass to your tool collection as well. 7 Bevel Gauge Whenever a project layout calls for an angle other than 90 you'll find that a sliding bevel gauge is indispensible. The slotted blade on a bevel gauge can be adjusted and locked at any angle, as well as extended or shortened as needed. I call on mine when laying out dovetails or other angled joinery, and to transfer angles from part part or shop dra",ings. m 0 , Woodsmith.com Woodsmith 11 "-1 oz. " - I) oz. "- SOZ. glU1ng u "'' Strong Joints Assembling tough, long-lasting glue joints is simply a matter of "sticking" with a few of the tried-and-true fundamentals. If you removed the glue from the joints, most woodworking projects would be reduced to a jumbled pile of parts. Even the best-planned and well-executed joinery wouldn't be worth a nickel without the contribution of the glue. However, when gluing up a joint, it's pretty easy to take a good end result for granted. The goal is simple - to get the best return on the time spent laying out and cutting a joint. But there's more to producing a strong glue joint than you might think. And to ensure that the glue does its job, it's helpful to have a basic understanding of a few simple gluing fundamentals. HOW GLUE WORKS. Every woodworker knows from experience that glue makes one piece of wood adhere tightly to another. But not many could tell you how. The truth is, the way glue works isn't completely understood. But there's a broad consensus that two different mechanisms are responsible. Although most woodworking is done with yellow polyvinyl acetate (PVA) glue, most glues work in essentially the same way. The glue creates both a mechanical and a chemical bond, as illustrated in the drawing above. A mechanical lock is formed when the glue finds its w ay into the pores and around the fibers of the wood and then dries hard. Like a nail or screw, it forms a physical bridge between the two pieces of wood, holding them in contact. But this mechanical connection is actually the weaker force. A stronger bond is formed by a chemical How Glue Works ------_. ...,..,.--- Glue line 12 - -- ' Highly Magnified Glue forced into the pores forms a relatively weak mechanical lock. A stronger bond is created by a chemical attraction along the glue line. Woodsmith or molecular attraction between the glue and wood. The glue between the two pieces of wood essentially acts like a very powerful magnet to bind them tightly together. THIN GLUE LINE. For this chemical attraction to be most effective, the two pieces of wood need to be in very close contact and the glue line should be very thin. You won't achieve a strong bond across a wide gap in a joint even if there's glue filling it. The excess glue will simply act as a weak link to diminish the long-term strength . THE THREE ESSENTIALS. So the next s question is, what do I need to do to make sure the glue gives me the strongest possible bond? Basically, there are three aspects to successfully gluing up a joint. And they're pretty easy to grasp. AGOOD fiT. First, the joint needs to fit properly. The mating surfaces should be smooth, flat and make good contact. As I described, an extra dose of glue won't make up for sloppy joinery. And on the other hand, a joint that fits too tight may No. 183 not have space to establish a good glue line. "Hand pressure snug" is a good rule of thumb. WHERE AND HOW MUCH? Second, you need to add the right amount of glue to the joint and put it where it will do the most good. Use too little glue and you'll risk a "starved" joint - too much, and the joint may not close up tightly. The goal is to end up with a continuous layer of glue between the mating pieces. So the glue should be spread in a way that ensures even coverage across the joint. CLAMP IT RIGHT. The final factor is proper clamping pressure. Clamping a joint serves more than one purpose. Obviously, the clamps close the joint and hold the surfaces in contact until the glue dries. But just as important, the pressure applied by the clamps creates a thin glue line and also helps the glue penetrate and "wet" the wood. So you need to think about both the number of clamps you use and where you place them. As a general The close spacing of the clamps on this panel create continuous pressure along the glue lines. Woodsmith.com ! Loose fit I 1 creates gaps, I and weak ( Snug (but " , not tight) I fit is ideal f '-- i i I / / L Mortise and Tenon Joints ! ,i I ~ ! / ) I g'J\ I : i \ I ==:::!: <-===;= , , rule, when gluing a joint, the more clamps, the better. SOME PRACTICAL EXAMPLES. So how does all this relate to gluing up a particular joint? Well, each type of woodworking joint is a little different. But a look at just a few common examples will give you a good general understanding of how to tackle a particular joint. MORTISE AND TENON. When assembling a mortise and tenon, the fit of the joint and how you apply the glue are foremost. A clamp will close the joint for the best appearance, but doesn't really apply force across the gluing surfaces. The drawing and photo above illustrate this point. To end up with a thin, strong glue line, the tenon has to fit snugly, but not too tightly, in the mortise. The glue won't form a strong bond across gaps between the mortise and tenon. And you'll notice in the photo that glue is spread on both the end of the tenon and at the top of the mortise. As the tenon is inserted into the mortise, the glue in the mortise is forced down while the glue on the tenon is forced back, resulting in full, even coverage. AN EDGE JOINT. The strength of an edge joint is entirely reliant on the action of the glue. So the fit of the joint, how you apply the glue, and clamping pressure all play a pretty important role. The edges to be glued should be smooth and straight so that you hav e good wood-to-wood contact all along the joint. A generous bead of glue should be applied to one edge and then spread evenly over the surface (main photo on the opposite page). Finally, use closely spaced clamps to ensure overlapping Woodsmith I ; "cones" of pressure along the joint, as in the lower left drawing and photo. This last step is a big key to creating the thin, "invisible" glue line that yields a strong joint. A LAP JOINT. Thanks to an abundance of gluing surface, a simple lap joint can be very strong. But here again, gluing the joint has slightly different considerations. In order to make the most of a lap joint's gluing strength, you need to start with smooth, flat surfaces. Ridges, grooves, and unevenness will prevent good contact and greatly weaken the joint. To assemble the joint, you'll simply lay one half over the other. So unlike a mortise and tenon, you can't rely on a "sliding" action to produce a continuous layer of glue. Instead, this is done by spreading glue liberally over one face of the joint, as in the photo below. As with a mortise and tenon, applying clamps along the length of the pieces will pull the shoulders tight, but this won't provide pressure across the gluing surfaces. To do this, a clamp should be tightened across the two halves of the joint, as shown in the drawing below. What all this comes down to is keeping the basic goals in mind and then tailoring each particular glueup to achieve them. If you do this, you really will be able to take strong glue joints for granted. m .. When gluing up a mortise and tenon, spread glue on the ends of the tenon cheeks and at the top of the mortise. , Spread the glue thorough ly over one face when assembling a lap joint. 13 makl d Rail & Stile Bits Whether it's kitchen cabinets or an entertainment center; a set of router bits offers an easy way to make the doors at the router table. It's no secret that a well-built cabinet needs doors that complement the overall style of the project. But they also need to be strong enough to handle .. Rail and stile bits create interlocking joints with a decorative profile. 14 years of use. So before building the doors you'll need to consider the design and joinery options. Frame and panel construction is a common solution. A hardwood frame surrounding a hardwood or plywood panel provides a lightweight and stable door. And simple stub tenon and groove joinery provides plenty of strength for this application. The only downside is the straight prome of the frame can be a bit, well, boring. Adding a routed prome to the inside edge of the frame gives a more professional, finished look. But creating it at the router table and then cutting the joinery separately adds several steps to the building process. Fortunately, you Woodsmith can accomplish the same result by using a set of matched router bits. A set of rail and stile cutters (often referred to as "cope and stick" bits) can take care of the joinery and the decorative prome in one operation. A stile bit cuts the prome and the groove for the panel in the edge of each of the frame pieces. A matching rail bit cuts a coped prome ahd a stub tenon on the ends of the rails. Since the bits are precisely machined to match, you're almost guaranteed a perfect fit. These sets can be a bit pricey, usually running anywhere from $80 to $100 for a set. But unless you're running a production cabinet shop, you can probably get a lifetime of service from these bits. No. 183 HOW THEY WORK. As you can see in the photos at right, each bit mirrors the other and the two fit together precisely. On both bits, the profile cutter is integral to the shank. The slot cutter and bearing are attached to the arbor with a nut. The drawings below show a sampling of the profiles commonly available. From a simple bevel to a an ornate French provincial profile, you can find a set to suit just about any style of cabinet door. See Sources on page 51 for where to purchase a set of bits. As an alternative to the two-bit set, several manufacturers also offer a sLT1.g1e-bit option. These bits cut both the rail and stile profiles by either reversing the cutters or simply changing the bit's height. I've included an example of each and an explanation of how they work on the next page. GETTING READY After choosing a set of bits, there are a few things you'll need to take care of before routing the door frames. The first step is to mill your stock for the frames. It's very important to make sure it's all perfectly flat, straight, and a consistent thickness. Any bow or twist in the stock will result in noticeable variations in the profile and joinery cuts. Stock thickness is also a big consideration. Most of these bits are designed to work best with %"thick stock. But you have some "wiggle room" here. Stock between 11;16" and %" will usually work. While you're at it, take a minute to make a few extra pieces specifically for testing your setups. I usually look for pieces with sapwood or other areas on the board with less desirable appearance for my test pieces. But always mill them along with your selected stock so they'll give you an accurate result. With the stock milled flat and square, you can rip the workpieces Rail Bit • The rail bit cuts the stub tenon and the matching profile on the ends of the rails. length and the stiles a little oversize. You can trim the stiles to final size after the door is assembled. ROUTER TABLE OPERATION ONLY. I need to emphasize that these bits are only to be used in a router table. Under no circumstances should you attempt to use them in a hand-held router. So the next step is to inspect your router table. Since these bits are larger than many more commonly used bits, it's important to make sure the openings in the table and in the fence can accommodate the size. Then there are a couple of things on the router to set up. I'll talk more about them on the next page. Stile Bit • The stile bit cuts the profile and a groove for the door panel and the stub tenon. Common Rail &Stile Bit Options - .I \ \ / / French Provincial Beading \ "\ "\ / , Beveled . '- , , ( , / I Ogee Woodsmith.com / .~~- ,, / , ( \ / \ ,/ \ I Roundover I ..I , --\ \ <.II I I Shaker Woodsmith 15 SETUP TECHNIQUES With the frame pieces milled and cut to rough length, you're just about ready to start making cabinet doors. But before you can begin, you'll need to finish setting up the router and the bit. SPEED. You don't need a big router to use these bits - most 2 hp routers will work just fine . But it's important to set your router speed correctly. Although you can safely run these bits at 18,000 to 20,000 RPM, I usually get better results at a lower speed. Try starting at a lower setting (about the halfway mark on the speed-control dial) and make a few test cuts. If you're getting a good cut and no tearout, , Tearout on the then you've found the right setprofile can be ting. If you get any burning, try minimized by turning up the speed and increasorienting the ing the feed rate a little. grain direction RAILS FIRST. I prefer to cut the proof the workpiece file on the ends of the rails first. so you're routing This way, I always have a square "downhill." edge against the router table fence when cutting the profiles on the edge with the stile bit. Grain runs "downhill" 16 Toggle clamp Fence (3V2" x 10" - V2" Ply.) Base (12" x 10" - ~" Hdbd.) ) Coping Sled Another advantage is that you can clean up tearout from these cuts later, when you rout the profile on the edges. I also like to use a coping sled to help keep positive control of the workpiece when making these cuts. The sled also allows me to place a backer board between the rails and the fence to help prevent tearout. You can see an example of a shop-made sled with a toggle clamp in the photo above. As a simpler alternative, you could use a miter gauge with an auxiliary fence or a simple plywood push block. Just make sure the workpiece is square to the router table fence and that you can hold the rails firmly while keeping your hands well clear of the bit. BIT HEIGHT. Now you're ready to set the bit height. This is where your test pieces will come in handy. Chances are it will take two or three test cuts to nail the perfect profile. A good starting point is to raise the bit until the top edge Woodsmith of the slot cutter portion of the bit is just above the top of the rail. (If you're using a sled, remember to make this measurement with the workpiece in place on the sled.) Now, slide the fence in position by holding a steel rule on the bearing to make sure it's flush with the fence. At this point, you can make your first test cut and inspect the coped end. You can judge the profile by looking at the narrow lip that butts against the shoulder of the stile. For most profiles, I like to shoot for a lip on the coped edge that's about %2" thick. Of course, you're free to adjust to your taste, but just make sure not to let this edge get too thin or you'll limit your options later, when you sand the assembled comers flush. Since this process is a bit finicky, it's a good idea to keep your final test piece to use for future setups. CUT THE RAILS. When you've settled on a good height, you can rout the ends of all the rails for your project. Place the outside face of the No. 183 You won't need the sled for these cuts. Start with a test piece on the table and "eyeball" the rough height as shown in the drawings at the bottom of the opposite page and proceed with a test cut. For these cuts, a featherboard might be helpful to keep the workpieces flat for a consistent result. You'll also want to use a push block to keep your hands clear. You can use one of the finished rails to test the fit and dial in a perfect-fitting edge. rails down against the table and the edge against the backer board to make the cut. Then rotate the workpiece end-for-end (keeping the same face down on the table or sled) and repeat. The finished rails should have identical profiles and be relatively free of tearout. NOW THE STILE BIT. Although we refer to this bit as the stile cutter, you'll use it on the edges of both the stiles and the rails. Once again, the bit setup comes first. -----~ . Assembly is a breeze with pe~ctlyffiatched profiles on the rails gpG-st-rres. -------- Then you can rout the rails and stiles. TEAROUT. A common problem when routing the edges is tearout. But you can minimize tearout by taking into account the grain direction of the workpiece. The photos in the margin on the opposite page show you what I mean. Adjusting. the router speed (usually faster) can also help get a cleaner cut. PANELS. After completing the edge cuts on the rails and stiles, you're ready to make the panels. You have a few options for the panels as well. A simple plywood panel is easy and quick. But taking the time to make hardwood raised panels can really give your project a great look. The photos at right give you an idea of the differences. To assemble the doors, all you need is a little glue on the mating edges and a clamp at each joint. The resulting doors are both attractive and strong. I think you'll agree that the finished product easily justifies the cost of these bits. iW A hardwood raised panel (top) adds more depth to the door than the flat plywood panel (bottom). S_in~g_ le-_ Bi_ tO ~p_ti_ on_s______~~~_________ RAIL CUT RAIL CUT Rail cut made with lower set of cutters STILE CUT $65-$100 I fll Jfn fll 7 - --'-- ", I : ,~:~-- &j"i'A" '-, Stile cut made with upper set of cutters A _.. _ -, - '" ' -' --, .~ It. J #'" n Combination Bit. A one-piece combination bit can be used for both the rails and stiles. All you need to do is raise or lower the bit to access the appropriate cutters for each piece. But they cost roughly the same as a two-piece set. Woodsmith.com $40-$90 Reversible Bit. The lower-cost option is a reversible bit. You'll need to swap the position of the cutters to cut rails and stiles. Using thin shims to adjust the fit makes this bit fussy to set up a can negate the value of saving a few bucks. Woodsmith 17 dovetailed Display Shelf The details give this shelf its distinctive look and offer some interesti ng woodworking. Just about everyone has some special treasures or unique possessions to display. This handsome wall shelf is a great place to show them off. In fact, this project may become a special treasure of its own. First of all, the shelves boast sliding dovetail joinery. Second, the shop-made molding is sure to draw attention in any room. And finally, putting it all together will expand your woodworking skills. But this isn't a project that will overwhelm you. With step-by-step details on cutting the joinery and making the trim, you'll have this beautiful shelf completed and ready for your prized collection in no time at all. Materials, Supplies & Cutting Diagram A B Sides (2) Shelves (4) C Filler Strips (3) Frame Front (2) o lh x 4 1h - 26 14 lhx4 1h-16 lhx% -:'Wh lh x 11h - 18 1h E F G H Frame Sides (4) Frame Back (1) Front Molding (2) Side Molding (4) lhx 11h - 5 1h lh x 11h - 16 h ' %x % -18 % x34 - 5'4 Panels (2) Hanging Cleat (1) • • • 14 ply. - 3 h x 16 h ' ' 11/,6 x % - 15% (16) #6 x 1" Fh Woodscrews (2) #8 x 2" Rh Woodscrews (12) 1" Wire Brads 'l'2" X 5W' - 72" Cherry (Two boards @ 2.8 Sq. Ft. each) [ZZZZZZZZZZZZ;Z%ZZZ%zzzzzzlzzzzzz:zzzzzzzzjzzzzzzz:zzzzzzzz~ 314 "x 4 "- 24" Cherry (0.7 Bd.Ft.) EEE 1t1fiiD H ALSO NEEDED: One - 24" x 24" sheet W' Cherry plywood 18 Woodsmith No. 183 building the a. FRONT VIEW CASE Assembling the case comes first. It's basically made up of two sides and four shelves. But before you get started, I want to take a minute to talk about the dovetail joinery used to connect the sides and shelves. DOVETAILS. Each of the shelves is joined to the sides with sliding dovetails (detail 'a'). A dovetail joint is a strong, attractive joint. It combines additional gluing surface with mechanical strength. The result is a jOirLt that worL't pull apart even if the glue fails. Making a sliding dovetail joint is pretty straightforward. Like most joinery, it's all in the setup. For details on cutting this joint, see the How-To box below. SIZING WORKPIECES. Getting the workpieces ready is the first step. As you cut the sides and shelves, make them a little wide to allow for tearout when routing the dovetails. Later, you can trim them to final width, leaving a clean edge. SIDES. As you can see in the drawings below, making a sliding dovetail is a two-step process. I start by making the dovetailed slots in the sides. The spacing is shown in detail 'b' above right. SHELVES. To make the dovetails on the ends of the shelves, I used a push block that rides on the fence b. SIDE SECTION VIEW 1. t i 1 T, \ I 7 V, I I ,.\ I I i I 1.t l I NOTE: Dimensions locate 1,~;:"U 'T , There are three other pieces to add to the case before it's ready to be trimmed out. You need to add a top and two bottom filler strips that serve two purposes (main drawing). They add strength and stability to the case. And they provide a base to attach the trim that you will add to the shelf next. FILLER STRIPS. I , j : \ of my router table, as shown in the box below. This will keep the shelves stable and flat against the table as they're being routed. ASSEMBLY. Assembling the case is just a matter of gluing the shelves and sides together. Be sure to spread glue on both surfaces of the joint. And after tightening the clamps, check the assembly for square. Some glue squeezeout is unavoidable, so you'll need to do a little clean up after the glue is dry. I I \ , I I 9 I I I I I J 1 VA @ V How-To: Rout aSliding Dovetail Joint END VIEW Sneak Sides. When routing the sides, keep the workpiece flat against the router table to maintain a consistent depth. Woodsmith.com Shelves. To rout the dovetails on the shelf ends, clamp the shelf to a push block. This will keep the shelf firmly against the tabletop and prevent it from tipping. Woodsmith Fitting. The shelf should fit snugly into the dovetailed slots on the side. 19 #6 xl" Fh woodscrew FRAME BACK a. NOTE: All frame parts are W' -thick stock FRONT SECTION VIEW c. I I ( I ( NOTE: See How-To box below for cutting tongue I NOTE: Only top frame back is grooved d. SIDE SECTION VIEW / Frame is attached with screws into sides NOTE: Glue lower frame back to filler strip #6x l ' Fh woodscrew L-! ! trimming out the WALL SHELF All that's left to complete the shelf is to add the trim on the top and bottom. The trim is made up of two separate pieces - a rabbeted frame and an ogee molding. FRAMES. The frame parts are flat workpieces with rabbets on the inside edge. The rabbets hold a panel that you'll add later. You can cut the rabbet on the table saw using a dado blade (detail 'a'). I found it easier to cut the rabbet on a long blank and then cut the pieces to length for the frames. How-To: Cut the Notches Notches on the Table Saw. Using a dado blade buried in an auxiliary fence, cut a notch on each end of the frame back. This will allow the piece to lap over the rabbets in the frame sides. 20 Woodsmith Rabbet holds bottom panel MITERED JOINTS. The top and bottom frames are mitered on the front comers and joined with a lap joint at the back. You can cut the front frame piece to length first and then miter the side pieces to fit. Finally, cut the back piece to length and then form the notches on the end (How-To box on left). GROOVE. The back piece of the top frame has a groove cut in the bottom, as shown in detail 'b.' This holds the hanging cleat that you'll make later. You'll also need to cut a slight chamfer on the back frame piece (detail 'b'). This chamfer will makes it easier to fit the shelf over the cleat when it's finished. ATTACH FRAME. Once you have all the frame pieces shaped and cut to fit, you can attach them to the case. I used screws to attach the front and side pieces of the frame to the case (detail 'c'). The back of the frame is simply glued. OGEE MOLDING. The distinctive look of this shelf is created by the details. No. 183 And a big part of this is the ogee molding. The molding is made at the router table using a %" ogee bit. Since the molding is narrow, I found it easiest to cut the profile on the edge of a wide board and then cut the molding free, as shown in the box at the bottom of the page. Again, you can make one long piece of molding and then cut it into lengths as you did earlier with the frame pieces. You'll find more information about dimensioning the molding in detail 'a.' ATTACH MOLDING. The molding is mitered to fit around the bottom of the shelf unit. As you can see in detail'd,' it fits snugly irl the corners formed by the case and the top and bottom frames. I used brads to attach the side molding. This will allow for wood movement. ADD THE PANELS. Plywood panels in the top and bottom frame complete the shelf. They give it a more finished look. Plus, this creates extra shelf space at the top. The panels fit into the rabbets on the top and bottom frames. Both panels are glued in place. CLEAT. To hang the shelf on a wall, all you need to do is make the cleat shown in detail 'b.' The cleat has a rabbet cut on one edge that creates a tongue. This fits in the groove in the back frame piece. You can cut the rabbet on the table saw, as shown in the right drawing below. I made the tongue slightly smaller than the groove in the frame, to allow for easier installation. If you find it's a little too large, sand the rabbet lightly. a. !ill 3'l'2 ~ END VIEW 3/32 t -I % I- TOP PANEL (!tJ" Ply.) ~ 3/L J - % ~ @@ T~%~ Top panel fits snugly into recess #8x2" Rh woodscrew cI. ~~ --------------------/ SIDE MOLDING (314" x 3M" - 5W') ~ THE FINISH. Once all the details are completed, you can apply your favorite stain (see Sources on page 51 for the stain I used), or leave the wood in its natural state. Either way, three coats of finish will protect the wood from damage. To mount the display shelf to the wall, first use a couple of long screws to attach the wall cleat, as shown in detail 'c.' Then you can lower the shelf over the cleat. All that's left is add your favorite collectibles to the shelves. mJ Rout the Molding. After installing a 1/4" agee bit in the router table, cut the profile in both edges of a wide blank. Then cut the molding pieces free on the table saw. SIDE SECTION VIEW 1\3 I ! I~ Make the Molding &Hanging Cleat Woodsmith.com 16'l'2 I MOLDING OGEE AI?25i NOTE: Attach front ogee molding first NOTE: Glue front molding to case Mitered comer is glued a. i !~: Aux. fence Push block END VIEW Make the Cleat. A dado blade will make short work of the hang ng cleat. Use a featherboard to keep the workpiece snug aga the auxiliary fence while cutting away the waste. Woodsmith 21 Designer Series Project .... ·~·III § :::. folding Step Stool Easy to build, very sturdy, and extremely practical - this project has the whole package. When folded, the compact stool can be tucked into a space that's only a few inches wide. ~ Nobody likes to climb to reach a high cupboard or shelf. But unfortunately, sometimes it's necessary. One way to make the trip up and down safer and a little less arduous is to use a stable and sturdy folding step stool - like the one in the photo above. When set up, the step stool is solid as a rock. The upper rail of 22 the tall front frame provides a convenient hand-hold to steady yourself as you step up to reach for the item you're after. Once you're safely back to floor level, the stool can be quickly and easily folded into a compact profile. This feature makes it easy to store in a handy location - ready for the next time you need a helpful boost. Woodsmith The clincher is that the stool goes together in a snap. There are no tricky "mechanics" to deal with. Solid, straightforward joinery and some common hardware are the basic ingredients. And I guarantee that when completed, this useful project will earn its keep for years to come. It definitely beats standing on a wobbly chair. No. 183 OVERALL DIMENSIONS: 20%"W x 47"H x 17%"D (Unfolded) 20%"W x49"H x 2"D (Folded) S _ _- ; . _ _ _ TOP rail of tall front frame makes convenient hand-hold ~_e_ _J"lJ Frame built with mortise and tenon joints NOTE: Steel pivot pins are solidly epoxied into steps at final assembly Steps pivot on heavy steel pins Wood buttons cap pivot pin holes in uprights Cutout in back step section creates hand-hold used to fold stool NOTE: Two-piece bottom step pivots on both frames and folds in middle NOTE: Two sturdy frames create solid, folding platform for the steps NOTE: Steps are installed after frames are assembled NOTE: The folded stool has a very narrow profile NOTE: Step stool can be set up or folded in seconds FIRST: Lift top step into frame to engage catches SECOND: Reach through cutout and pull up on front section of bottom step NOTE: When set up, footprint of step stool is wide fot:::r::l:::z:i~=::::;::;~ and stable Woodsmith.com Woodsmi 23 a. SIDE SECTION VIEW Drill W' -dia. hole centered on length of rail NOTE: Top edge of lower and middle rails beveled to 15° NOTE: Top rail and uprights are shaped after assembly b. SIDE VIEW 3fa" roundover sanded on end of back uprights Drill3fa" -dia. through holes for pivot pins A FRONT UPRIGHT c. II 116 ij3 , 3116 73116 rl==::::==---~:r----i ~6 FRONT VIEW NOTE: All parts cut from %" -thick stock making the FRAMES The support system of the step stool is formed by two sturdy frames - a tall front frame and a shorter back frame. The two are connected witn hinges to create a stable folding platform for the two steps. So building these frames is your starting point. THE BASICS. Take a look at the main drawing above and you'll understand what's ahead. The front frame is made up of two uprights and three rails. The back frame has two, shorter uprights and two rails. Mortise and tenon joints offer maximum strength and rigidity. 24 [V 18~6 Shape curve after tenons and bevel are cut 7'8 V8"-dia. hole for magnet cup ~ 3fa" -dia. through hole for p ivot pin NOTE: Lower mortise locations on front and back uprights are identical ~~~_2,~_~__~~__~ l 3116 1 """'<=i"--t---r-----i Jl r-L-----~----~ 13fa T ~6 and tenons are 3fa" wide and 3fa" thick UPRIGHTS. Since both frames use the same general construction, it makes sense to work on them at the same time. I started by cutting the front and back uprights to width and overall length. The upper end of each rail can be cut square at this point, but the lower end is cut at a 15° bevel, as shown in the upper right draw ing. This is done so the frames sit flat on the floor when the step stool is set up. MORTISES. Next, I laid out the mortises on the inside edges of the uprights. The mortises are all identical in size (detail 'e'). And the mortises in the back uprights and the two lower mortises in the front upright are positioned identically. You can layout the mortises by clamping all four uprights sideby-side and marking across them. This will ensure that the mortises are perfectly aligned. Woodsmith After completing the mortise layout, I took the uprights to the drill press and used a 5/16"-dia. bit to remove the bulk of the waste. Then it was back to the bench to square up the mortises with chisels. PIVOT PIN HOLES. Now you'll need to make a return trip to the drill press to drill holes for the steel pins that the steps pivot on (main drawing). As shown in Figure 1 on the opposite page, these holes go through the width of the uprights. This allows you to install the steps and their pins after the frames are assembled. The holes are then plugged on the outside. The pivot pins are 1f4" in diameter, but I drilled %"-dia. holes through the uprights. This extra clearance for the pins allows the step to settie onto the rail beneath when you stand on it. The rail helps bear the weight, not just the pins and step . No. 183 DETAILS. There are just a couple of minor details to complete on the uprights. The tops of both sets are contoured. The back uprights are simply rounded over, as shown in detail 'h' on the opposite page. I did this with a sanding block. (The front uprights and top rail are shaped later, after assembly.) Finally, I drilled a hole in the back face of each front upright, as you see in Figure 2. These holes hold a cup and magnet that are part of a catch system for the upper step. THE RAILS. Making the rails comes next. You can start by cutting the two lower, two middle and one upper rail to overall size (detail Ie' on opposite page). Then I replaced the standard blade with a dado blade in preparation for cutting the tenons on the rail ends. When making the tenons, you need to stay on your toes. Even though the mortises in the uprights are all the same size, the layout of the tenons on the top, middle, and bottom rails is each different. Check out detail 'c' on the opposite page and you'll see how the top and bottom shoulder heights vary. Since all the tenons are the same thickness and length, this a good place to start. I set up the saw and cut the long cheeks and shoulders on all the tenons first. Then I made the top and bottom shoulder cuts, starting with the shortest and working up to the tallest. 3fa" -dia. brad point bit Fence Pivot pin holes drilled through width of uprights @ 1f2-dia. rare-earth magnet BEVELS, CURVES, AND AHOLE. When the tenons are completed, you can cut the lower and middle rails to their final shape. First, all four need a 15° bevel along the top edge. This allows the steps to rest flat on the rails when the stool is being used. The lower rails also get a decorative curve that will complement the curve you'll add to the top rail. You can use essentially the same technique, shown in the box below. After one more quick task, you can begin assembling the frames. I drilled a %"-dia. hole through the top rail to act as a focal point and for hanging the stool on a wall (detail 'c,' opposite page). ASSEMBLY. The two frames are ready for glue and clamps. Just be sure to put the rails in their correct spots on the uprights and remember to check for square. TOP CURVE. With the front frame assembled, you can lay out the top curve and cut it to shape. The details are shown in the box below. After smoothing the curve with sandpaper, I added the final detail - a Va" roundover on both edges. How-Yo: Lay Out &Cut Curves A Smooth Curve. A "bow" made from a thin strip of wood and a knotted string makes an easy job of drawing a smooth, even curve Woodsmith.com across the top rail and uprights. You want the e corner of the curve to barely clip the uprights, as shown in the detail drawing. Woodsmi Remove the Waste. I took the lightweight frame to the band saw to cut the curve to shape. 25 a. b. SIDE SECTION VIEW Vs" roundover NOTE: Install steel pivot pins and washers during final assembly ~ 2" brass butt hinge ~ NOTE: Drill Steel catch tab attached to underside of top step W -dia. holes for pivot pins in ends of steps (see opposite page) Shop-made steel catch tabs Attach hinges with no gap between step pieces Wood button caps pivot pin hOI') SIDE SECTION VIEW (}l lI.," -dia. steel pivot pin ~\, NOTE: Cutout in back step piece creates hand-hold for folding stool e. Pivot pin - 1 - - - ' epoxied into step at final assembly (L,rk~b==J:=t==-1 If'@ \V FRONT SECTION VIEW adding the STEPS With the two frames completed, the next step is to join them into a folding platform by adding a pair of hinges. Then the two, pivoting steps can be made and added. THE HINGES. If you look at detail' a,' you'll see that the butt hinges are simply sandwiched between the two frames. You want to mount them so that the lower, beveled ends of the front and back uprights are "flush." A simple trick makes positioning the hinges easy. First, I attached a hinge to each back upright so that the barrel was flush with the end. Then I aligned 26 the back frame on top of the front frame, butted stop blocks up to the hinged ends of the back frame, and clamped them down. After removing the hinges from the back frame, I used the stop blocks to position and attach them to the front frame. Reattach the hinges to the back uprights and you're in business. TWO STURDY STEPS. Now it's time to add the all-important steps. The upper and lower steps function a bit differently, but making them is pretty similar. So again, I worked on both at the same time. The lower step is made in h-vo pieces so that it can pivot on both frames and fold in the middle, as you can see in the main drawing. The sections are joined by two heavy-duty strap hinges. The rear section of the lower step has a cutout at the joint line. Woodsmith This allows you to fold the stool easily. After raising the upper step, you simply reach through the cutout and pull up on the front section of the step, collapsing the frames. The upper one-piece step only pivots on the front frame. When folded down, it's solidly supported by the back frame rail. FIRST HSTEp'HI started by cutting the top and two bottom step pieces to finished size. You want to leave Va" side-to-side clearance to accommodate washers between the steps and frames (main drawing). ROUNDOVERS. For the steps to pivot smoothly over the frame rails, the lower, outside edges of the pieces need to be rounded over (details 'h' and 'c' above). I did this with a %" roundover bit in the router table. And while at the router table, I also eased the remaining long edges with a Va" roundover. PIVOT PIN HOLES. The next step is to drill the pivot pin holes in the ends No. 183 of the steps. The upper drawing at right shows the best way to do this - with a doweling jig. CUTOUT. Once the pivot holes were taken care of, I laid out the cutout in the rear section of the lower step. It's simply a 2" radius centered on the length of the step (detail 'd,' opposite page). Then a quick trip to the band saw and a little sanding will create a smooth contour. HINGES. With the cutout completed, you can install the hinges across the two,lower step sections. I attached the hinges with no gap at the joint line, as shown in detail 'c' on the opposite page. This will prevent the step from bowing when.you put your weight on it. HARDWARE. At this point, the steps are ready to go. But before they can be installed, you have to fabricate some simple custom hardware. The steps require six, 2%" -long steel pivot pins (detail 'e' on the opposite page). I cut these from a length of l;4"-dia. rod and then ground a chamfer on each end. I also made a set of longer, temporary pins from a 1;4" dowel. They'll be easier to install and remove when you initially assemble the steps to the frames to complete the final detail (lower left drawing). MAGNETIC CATCH. The final task is to finish up the catch that retains the top step. The lower right drawing above shows the mating half of the catch - a steel tab on the bottom of the step that engages the magnet installed in the front upright. Shop Tips: Assembly Details Self-centering doweling jig guides bit when drilling pivot pin holes a. NOTE: Pivot pin holes are located in the ............ same position on all ct 7. step pieces % -- -~- ® With top step folded, locateJ~x2Y2" a t=1==~l=o;;(1 ve~r~ magnet in upright .. and attach with #6 x \12" Fh woodscrews .~ NOTE: See page 29 for help making catch tabs Magnet and cup The catch tabs are simply short pieces of %"-wide steel bar stock with a pair of countersunk screw holes. It' s easier and safer to drill the screw holes on a longer piece, then cut the tabs to length and smooth the edges. You'll find a tip that will help with this on page 29. To locate the tabs, swing the upper step into the frame and "stick" a tab over each magnet. When the tabs are positioned properly, mark for screw pilot holes on the bottom of the step. Now you'll have to remove the step to drill the holes and install the tabs. Then you can replace the step and give the stool a "test fold." FINAL ASSEMBLY. After the finish is applied, you can install the steel pins and washers. To make sure the pins don' t work loose, glue them into the steps with a good amount of epoxy. Finally, glue the finished buttons into the holes. (detail 'e' on opposite page). The only challenge left at this point is finding a convenient spot to store the step stool. It's sure to be called to duty often. lW Materials, Supplies &Cutting Diagram A B C 0 E F Front Uprights (2) Back Uprights (2) Bottom Rails (2) Middle Rails (2) Top Rail (1) Top Step (1) x 2 - 48 3i4 x 2 - 30 3i4 x 2% - 17 112 % x2-17 1h %x 2% -17 112 % x 8 - 15% 3i4 G • • • • • Btm. Step FrU Bk. (2) % x 515/16 - 15 7/8 (2) 2" Brass Butt Hinges w/Screws (2) 4" Strap Hinges w/Screws (2) W -dia. Rare-Earth Magnets (2) 1;2" -dia. Magnet Cups w/Screws (1) li4 "-dia. Steel Rod (24"long) • • • • (6) li4 " Brass Washers (1 ) 1Js" x % " Steel Bar (1 2" long) (4) #6 x 112 " Fh Woodscrews (6) % "-dia. Oak Buttons 3,4" X 5" - 84" Red Oak (2.9 Bd. Ft.) l///////////??/////////;/??????????????????????!????/?/??????/;??z/??????????~ 3,4" x 9" - 84" Red Oak (5.25 Bd. Ft.) Woodsmith.com Woodsmi 27 tips from our shop SECOND: Set lid on case and tap down to transfer pin location Spacer strip FIRST: Attach guide blocks to side of case to position lid Precise Pin Placement • A pair of Smm shelf pins and sleeves are used to secure the front panel to the lid . Installing the pins and sleeves in the lid and front of the machinist's chest on page 30 is pretty straightforward. You simply drill separate holes for the pins and the sleeves and press them in place. The challenge is in positioning the holes so that the pins and sleeves are in perfect alignment when the lid is closed over the front paneL To do this, I started by drilling the 5 mm holes for the pins in the edge of the paneL After pressing the pins in place, gently clamp the panel to the case to hold it in place, as shown in the drawing at right. Now, all you need to do to transfer the location of the pins to the lid is set it on top of the case and press down firmly. But before doing this, I took a couple extra steps to make sure everything was lined up. SCRAP BLOCKS. First, to help position the lid on the case, I attached some small blocks of wood to the sides of the case with doublesided tape (see drawing). NOTE: Clamp front in place - -+rn-::- b. SIDE SECTION VIEW Pin creates a "dimple" in lid Guide block SPACER STRIP. I also cut a narrow spacer strip to support the back of the lid. It should be. just a hair thinner than the exposed height of the pin (detail 'a') and long enough to span the width of the chest, as shown above. Setting the lid on top of the case and giving it a couple of good taps directly over the pins should create a couple of slight depressions, or dimples on the edge of the lid. This will allow you to locate the holes for the sleeves. Drilling Pilot Holes .l Snip the head off one of the escutcheon pins to create a "bit" for drilling the pilot holes. 28 The ring pulls used on the drawers of the machinist's chest are held in place with small escutcheon pins. Because the pins are located close to the edges, I was afraid they might split the edge 6f the drawer front when nailed in place. To avoid this, I decided to drill angled pilot holes for the pins first. The only problem w as that I didn't have a drill bit small enough to match the diameter of the pin. So instead, I made a d rill bit by simply snipping the head off one of the escutcheon pins. With the pin chucked in my drill, I was able to make perfectly sized pilot holes. Use pull as template for drilling holes Drill "bit" made from escutcheon pin Woodsmith a. NOTE: Angle holes slightly to increase holding power TOP VIEW b. END SECTION VIEW Angle pin inward on shallow drawers to prevent splitting No. 183 Cove Panel The machinist's chest features a frame and panel front and back. Both of these panels have a cove profile around the edges. But you don't need an expensive raisedpanel bit to make this profile. Instead, I used a couple of commonly owned bits. I created the rounded portion of the profile using a core box bit installed in my router table. As you can see in the main drawing below and detail 'a,' I routed across the ends of the panel first, and then along the two sides. This helps to prevent chipout. -.- --.-- -- Fence Front/back panel ''''- b. END VIEW "'----"'~~- -.... To remove the remainder of the waste around the panel, I switched over to a straight bit (detail 'b'). Again, I started at the ends and finished up with the edges. Then a little light sanding is all that's needed to blend the two cuts into a smooth profile. END VIEW Rout away remaining waste with straight bit ----.. NOTE: Rout cove on top and bottom edges of panel first Rivet Installation The hinges and handle of the machinist's chest are held in place with traditional split rivets instead of screws. To install the rivets, start by drilling pilot holes for the rivets, using the hardware as a template. Then, insert the rivets through the hardware and holes. The end of each rivet is split. You can use a screwdriver to spread the end apart. Then flatten the end against the inside of the case with a small hammer. The trick is to make sure that the head of the rivet is firmly backed up as you peen over the split end. To secure the hinge rivets in the case, you can simply rest it on its back, as shown in Figure 2. But to install the rivets in the lid and the handle clamps, you'll need to use a block of wood to back up the rivets as you peen them over, just like you see in Figure 3 below. a. NOTE: I-'f"~...-j Tap rivets into holes with mallet SIDE SECTION VIEW Use scrap piece to back up rivets Use hinge as template to lay out hole locations Hacksaw Jig The Step Stool on page 22 requires cutting some steel rod and bar stock for the pivot pins and catch tabs. To help hold the stock while cutting the pieces to length with a hacksaw, I made a simple jig like the one shown at right. It's nothing more than a block of wood with a shallow groove to hold the bar stock and a deeper groove to hold the rod. A kerf helps to guide the saw blade. lit Woodsmith.com a NOTE: Jig is made from "two-by" stock • Shallow groove holds bar stock Hacksaw blade Kerf for hacksa bla e Woodsrruth END VIEW b. Deep groove holds rod Hacksaw blade END VIEW 29 Heirloom Pro' traditional oak ly.~~~ I have to admit that I have a fascination with old tools and tool chests. It's easy to see why. Most of these designs have proven themselves through the years to be the height of craftsmanship. Beyond holding a tradesman's tools, they displayed a pride of workmanship characteristic of that era. These old chests were the inspiration for the machinist's chest shown in the photo above. This chest's drawers and lidded storage till can hold a wide variety of 30 commonly used tools. From the basic measuring and marking implements to your favorite hand tools, this chest will keep everything in its place. You can also see why the design is a classic. The case features solid, finger-joint construction, and a frame and panel back and front. These elements, combined with the vintage hardware, lend authenticity to the chest's antique appearance. Woodsmith You don't need to have a fondness for antiques to appreciate how useful the case is today. It's ideal for just about any hobbyist or collector. The slim profile of the drawers is perfect for organizing any small items. And by simply closing the front of the chest, the drawers remain secure, making it easy for you to take it with you. On top of all this, it's a great skill-building project that's sure to become a long-lasting reminder of the value of solid craftsmanship. No. 183 OVERALL DIMENSIONS: 17"W x 12'h"H x 8"0 Plywood panel fits in grooves on the back and sides to form bottom of storage compartment Hinged lid also relies on finger joints for strength Felt drawer lining is mounted on posterboard for easy installation Locking rabbet joints on the drawers are both strong and easy to make Drawers ride on wood runners for smooth-sliding operation Holes for drawer pulls are routed to avoid drilling through thin stock ~,~", Pins in the front panel fit into holes in the lid to secure the chest and drawers " " ~, ......... ~ , Finger j oints provide plen ty of strength to hold the weight of tools and the chest Turn to page 39 for tips and techniques for making perfect-fitting finger joints Hardware protects the corners from damage, ensuring years of service -" ~ RUbber!u~ protect worksurface from damage SIDE SECTION VIEW Front panel slides into lower compartment .l With the lid closed, the front panel holds the drawers in place, making it easy to transport t he chest. Woodsmith.com Woodsmith 31 b. SIDE SECTION VIEW E DRAWER DIVIDER CLEAT NOTE: Drawer divider cleats are centered front to back under till panel I I I ® i CASE SIDE 11 :i \; , .' I; I I I j i { ~ NOTE: Case sides, 7% bottom, front rail, ~ and drawer divider are made from \11" -thick hardwood NOTE: Trim case sides and bottom to final width after cutting finger joints starting the CASE The strength of the chest comes from a solidly built case. As you can see in the drawing above, finger joints connect the sides and bottom, providing a structural backbone that virtually guarantees that the case will be able to withstand the rigors of daily use. A front rail ties it all together and helps keep the assembly square. The sides and a center divider panel also hold the drawer guides. Grooves in the sides and the rail house a till panel that forms the bottom of the upper storage compartment. SIDES & BOTTOM. I started by cutting the sides and bottom to length. Leave each piece wider than final size so you can trim them after cutting the finger joints to end up with a full pin or notch on each end. Now, set up the table saw and cut the finger joints. Refer to page 39 for an in-depth description of this process. Then, cut the 1;4" groove at the front edge of the bottom that holds the removable front. How-To: Stopped Grooves &Dadoes NOTE: Measure from far edge of bit to position stop block Groove for the Top Rail. Limit the length of the groove by clamping a stop block to the router table fence. 32 NOTE: Measure from far edge of bit to position stop block Swap & Repeat. To rout grooves in the other side of the case, reposition the stop block and rout from the opposite side. Woodsmith NOTE: Measure from far edge of bit to position ' -_ _ _ _ _..t:S.==-' stop block Dado for the Till Panel. After switching to a smaller router bit, use the same technique to rout a dado on each of the case sides. No. 183 STOPPED DADO & GROOVE. After cutting the finger joints, you can move to the router table and cut the groove and dado for the till panels and front rail. The box at the bottom of the opposite page shows you how 1 used stop blocks to make these cuts. Finish by squaring up the comers with a chisel. FRONT RAIL The sides and bottom form a three-sided assembly. To stabilize and square the case, you'll add the front rail. To create a tongue on each end of the rail, 1 simply used a dado blade on the table saw. Then all you need to do is rout a groove for the till panel (detail/a,' opposite page). TILL PANEL The next thing to take care of is cutting the till panel to size. You'll also need to add some cleats to the underside to hold the divider panel you'll make later. After marking the centerline of the panel, you can use a square to position the cleats and glue them in place. A little tape will hold them while the glue dries. To complete the panel, drill two holes for screws to hold the divider, as shown in the main drawing. DRAWER DIVIDER & GUIDES. The divider panel hangs from the till panel and has drawer guides to mirror those on the sides (note that there are a different number of guides on each side). After cutting the panel to size, cut the small notches on the edges (details 'a' and 'h'). Then rout the shallow V-grooves as shown in the Shop Tip at right. Now you're ready to add the drawer guides. The box at right shows you how to do this. ASSEMBLY. At this point, you can assemble the case. I started by gluing up the finger joints on the sides and bottom. Then you slide the front rail into the groove on the sides and clamp up the assembly. Finally, attach the drawer divider to the till panel and slide the panel into position after spreading a little glue in the dado in the sides. To complete the assembly, cut a small plug (I used a scrap test piece) and glue it in the hole left after cutting the groove for the bottom. See detail'd' on the opposite page. Woodsmith.com Shop Tip: V-Groove a. END I-----i VIEW Divider Panel Grooves. After setting the bit height, all you need to do is rout one side, then flip the workpiece and rout the other side to keep the grooves evenly spaced. 0 A A 60 V-groove bit is used to rout the shallow grooves on the front of the divider. How-To: Install the Drawer Guides NOTE: Left side of case requires only four guides Start Square. Place the two sides together against a straightedge on the bench and use a square to position the drawer guides. Perfect Alignment. With the first side complete, use a square to align the guides on the opposite side, as required. F ~-=:::'--Top of divider panel aligns with bottom of till panel groove Top of divider panel aligns with bottom of till panel groove A LEFT CASE SIDE Use VB· -thick spacers under side Divider Panel. Use a straight p ece of stock milled to %" as a spacer to align the drawer guides on the divider panel. Woodsmith Both Sides. Flip the divider over and make sure the alignment is correct and matches the proper side when the guides are installed. 33 Till panel groove cut after assembly b. BACK STILE Drawer guide SIDE SECTION VIEW . C~se bottom \\ ® FRONT SnLE 1C. --------, Drawer guide a. FRONT BOTTOMRA/~ 5 3 A6 V2" SIDE radius SECTION l-r-rf----~-~--_l VIEW :::>'" I 3~ " 1J~ ~ ~ , Case bottom ~' CD 10% NOTE: Rails and stiles are made from W' -thick hardwood. Raised panels are made from 3fs" -thick hardwood Lidpin'-.. d. f'> r5mm 1-,-1 FrC rail completing the CASE & LID With the case partially assembled, you can tum your attention to the front, back, and lid. To build the front and back, I used straightforward frame and panel construction. The fixed back adds rigidity to the chest while the removable front conceals and secures the drawers. The front has pins on the top edge that fit into sleeves in the lid to lock it in position. Like the case, the lid is assembled with finger joints. .. -. . >" - ,-/" -. ~ It's also hinged to cover the open storage compartment. FRONT & BACK. Although they are slightly different in size, the front and back are both built using the same frame and panel joinery and building techniques. I'll go through the process for the back and you can apply those methods to the front as well. I began by cutting the rails and stiles to final size. Then, using a ' . , .. ---.! -~ -' / -C{ / ® K '. 'L..L . " .... £6. + 1;76 t SIDE SECTION VIEW dado blade, cut the %" groove for the panel in each piece. Now reset the dado to 1;2" and cut the tenons on the rails. The box below shows each of these steps. To make the raised panel, I glued up narrower stock and planed it to a final thickness of %". You can find the details for creating the raised field on the panel on page 29. After sanding the panel and frame pieces, simply assemble the How-To: Cut Rail &Stile Joinery and Rabbets Cut the Grooves. With a dado blade in Stub Tenons. Cut the stub tenon on each Rabbet the Outside Edge. On the back, the table saw, cut the groove on the inside edge of the rails and stiles. of the rails using a miter gauge equipped with an auxiliary fence. cut a rabbet on the stiles and bottom rail to fit inside the back of the case. 34 Woodsmith No. 183 frame with glue on the tenons and add clamps. When the glue dries, cut a rabbet on the sides and bottom edge of the assembly. Then install a regular blade and cut a groove on the inside face for the till panel. Finally, attach the drawer divider cleats with glue. I just used tape to hold them in place while the glue dried. You can then fit the rabbets on the back panel in the case (with the till panel in the groove), glue it in place and clamp the assembly. To make the removable front, use the same process. However, after assembly, instead of a groove near the top, cut a rabbet on the lower edge to form a tongue that fits into the groove on the case bottom. THE LID. The next step is to make the lid. A hardwood panel, rabbeted on each edge, fits over a finger-jointed frame. You can start by cutting the frame pieces to size. Then, using the same method as before, cut the finger joints on the four workpieces. Be sure to check for square as you assemble the lid. Now you can move on to the lid panel. I found it helpful to begin by Secure lid to case with tape b~ Back panel b. FRONT SECTION VIEW ~________-4_9~~~~ @ cutting it slightly oversize and then sneaking up on a perfect match to the size of the frame. Then I buried a dado blade in an auxiliary fence to cut the rabbets on all four edges. Size the rabbets so the panel fits in the frame with a 1;16" gap all around. Then the panel can be attached by spot gluing the ends and adding a few brads. This method allows for expansion and contraction of the panel. I finished by drilling holes for the sleeves and secured them with epoxy. (Details are shown in Shop Notebook on page 28.) ROUT THE EDGES. A decorative rounded profile on the edges of V4 V2 the case adds a distinctive detail. Normally, this would be a pretty straightforward operation at the router table, but in this case you'll first need to attach the top to the case. Since the hinges would prevent the case from sitting flat while routing, I simply used tape to hold things in place while I routed the edges. The illustrations below show you the details of where to start and stop the cuts. When you've finished routing the edges, the next step is to give the case a good sanding. Take the time to pay special attention to the routed end grain of the finger joints to guarantee a good finish later. NOTE: Remove front before routing case edges Case side \14" roundover on all outside edges Woodsmith.com Round Over the Edges. Rout the stopped roundovers on all the edges of the assembled case by simply marking the start and stop locations on the router table and fence and aligning e corners with the marks. Woodsmith ... Roundovers on edges of case and top add a decorative and softening appearance. 35 NOTE: Drawer fronts, backs, and sides are planed to 3fs"thick from 112" -thick stock. Bottoms are Ve" plywood ") Felt over posterboard y LARGE DEEP DRAWER FRONT NOTE: Size drawers to fit case with minimal gaps NOTE: Apply felt to posterboard with spray adhesive, then cut to fit r- building the DRAWERS The chest is really taking shape now. The next task is to add the seven drawers. With two deep and five shallow profiles, they're sure to provide plenty of useful storage for your valuable items. DRAWER PULLS. As you can see in the drawing above, the drawer pulls are recessed in holes in the drawer fronts. I didn't want to drill into 8~ the thin stock and risk the point of the drill bit breaking through. Instead, I routed the holes using the simple jig and the techniques shown in the box below. LOCKING RABBETS. The drawers are all assembled with locking rabbet joinery and are grooved to hold the Va" plywood bottoms. Grooves in the sides allow the drawer to slide How-To: Rout Drawer Pull Holes Routing holes for the drawer pulls is a pretty simple operation. All you need is a template and a bearing-guided dado clean-out bit. The template is just a piece of 1;4" hardboard with a hole drilled to match the diameter of the pull. A cleat acts as a stop to ensure consistent hole locations. Then just add a couple spacers, clamp it to your bench and you're ready to rout. 36 on the drawer guides you installed earlier. The process for building the drawers is the same, regardless of the size. The detailed instructions on the opposite page will show you how to proceed. DRAWER LINING. Finally, I completed the drawer by adding felt liners. By gluing the felt to posterboard, it's easy to get a good fit. Woodsmith Template base Template Routing. Using a template to rout the drawer pull holes results in clean-cut, consistent holes for the hardware. No. 183 How-To: Drawer Joinery It's tough to beat locking rabbet joinery for building drawers. This type of joint (shown in detail 'a' on the opposite page) is mechanically strong and can be made with a few simple setups at the table saw. START WITH LABELS. As you're cutting the drawer parts to size, it's a good idea to label each piece to avoid confusion and mark the inside/ outside face as well. I also routed the holes for the drawer pulls before CUtfillg the jOirLtS. The step-by-step illustrations at right show you the complete process, but there are a couple things I want to add. First, I used a push block with a support cleat to cut the ends of the drawer fronts and backs (Step 1). This not only makes for a much safer cut, but also reduces errors caused by the workpiece shifting during the cut. The second thing I want to stress is the importance of making a few test cuts on extra stock. Spending the time to fine-tune the joints on scrap pieces will assure you of tight-fitting, well-made drawers. Finally, the photo below and Steps 7 and 8 show how the decorative Vgroove in the drawer fronts stops near the drawer pulls on the shallow drawers. Accurate marks when setting up to rout these grooves will help you get this detail right. Then it's just a matter of lowering the workpiece onto the bit and it off on the marks. Slots. Using a push block with a cleat to hold the workpiece square, cut slots on the ends of the drawer fronts and backs. Tongue. Form a tongue on the inside of each end by trimming one of the cheeks. Sneak up on the first cut, then set the rip fence as a stop. Dado the Sides. To hold the tongues of the fronts and backs, cut dadoes in the side pieces. Sneak up on a good fit by raising the blade a little at a time. Tall auxiliary fence Outside Grooves. Make sure all the workpieces are oriented properly as you cut the grooves for the drawer guides. SECOND: Lower drawer onto bit at start line and finish routing groove A On the shallow drawers, the V-grooves stop on each side of the drawer pulls. Woodsmith.com Grooves. A shallow groove on all four drawer pieces will hold the bottom panel. Use a push block to make the cuts safely Technique. To rout the stopped grooves on the shallow drawers, mark start/stop points on the fence and then rout to the lines. Woodsmith Notch the Back. After assembling the drawers, use the same table saw setup to cut a notch on the drawer back to match the grooves on the sides . . Lower drawer at start line SECOND: Rout to stop line and lift drawer THIRD: Lower drawer at start line and complete groove Change Layout Lines. For the longer drawer, you 'll need to add more start/stop lines, but the routing technique is the same. 37 attaching the HARDWARE • Split rivets are used to attach the hinges and handle. See Shop Notebook, page 28, for more information. All that remains to complete the chest is to add a finish and the hardware. Sources on page 51 has all the information on both. HANDLE & CHAIN. After finishing the chest, it's time to install the hardware. And as you can see in the photos throughout this project, there's a lot of it. To complete the hardware on the lid, you'll add a handle and a chain to control the opening (Figure 1). The chain is simply attached with small screws. The handle is a little more complicated. Instead of screws, it attaches with a cotter pin and a riveted "clamp" on each end. You can start by centering it on the top and marking the locations for the holes. I found the cotter pins that came with the handle too short, so I replaced them with longer ones from the hardware store. After drilling the holes, carefully install the clamps over the ends of the handle with rivets. HINGES. The hinges come next. And they're installed using split rivets. Shop Notebook on page 28 #4 x 3fs" _-----1'--t--tf-..... Rh woodscrew 11"-long chain #6x !fl" Fh woodscrew has some tips for installing these unique pieces of hardware. You'll also find out how I installed the lid pins and the drawer pulls there. LATCH. Next, you can turn your attention to the latch (Figure 2). The thing to look out for here is getting a tight fit when the lid is closed. I installed the lower portion of the latch first. This way, I was able to adjust the position of the top to make sure of a good fit. CORNER GUARDS. The last major hurdle is to add the comer guards. You'll notice that the lower front guards have only two tabs while the rest have three. This allows room for the removable front panel. Installing the guards is pretty straightforward, but you might need to sand down the comers of the box to get a good fit. Adding rubber pads to the guards protects worksurfaces from scratching. The machinist's chest is now ready to fill with tools, collectibles, or any of the other valuables you might wish to store. iD Materials, Supplies & Cutting Diagram Case Sides (2) Case Bottom (1) Front Rail (1) Till Panel (1) E Drawer Divider Cleats (4) F Drawer Divider Panel (1) G Drawer Guides (14) H Back Rails (2) I Back Stiles (2) J Back Raised Panel (1) K Front Top Rail (1) L Front Bottom Rail (1) M Front Stiles (2) A B C D 'hx 7%-11 '/2 X 7% -17 'h x 2 '4 -16 'h '18 ply. - 7 x 16 h ' '18 ply. - % x 3 'h X 7118- 4 'h - 6% lh x 3 -12 118 X '12l 3 - 11 % X 11718 - 6 lh x 3 - 10 718 'h X 35116 - 10 718 lh x 3 - 10 111,6 w x 4 112" - 96" Quartersawn White Oak (3.0 Sq. Ft.) A I A I A I A I 8 I 8 I 1,12" x Front Raised Panel (1) % x 10% - 5% Lid Front/Back (2) lh x 1'4 - 17 P Lid Sides (2) lh x 1'4 - 8 Q Lid Panel (1) lh x 8 - 17 R Small Drawer Fronts/Backs (8) 318 x 114 - 7% S Shallow Drawer Sides (10) 318 x 114 - 6% T Small Drawer Bottoms (5) 1~ ply. - 6% - 7% U Small Deep Drawer Fronts/Backs (2)% x 21h - 7% V Deep Drawer Sides (4) % x 2 h - 6% ' W Large Drawer Fronts/Backs (2) % x 1'4 - 16 X- Large Drawer Bottoms (2) 1~ ply. - 6% - 15% Y Large Deep Drawer Fronts/Backs (2) % x 21h - 16 • (8) %" Wire Brads N o • (1 set) Corner Guards w/Screws • (9) Drawer Ring Pulls • (1 pr.) Hinges w/Rivets • (1 pr.) Latches w/Screws • (1) Handle w/Clamps & Rivets • (4) Rubber Foot Pads • (2) 5mm Shelf Pins • (2) Shelf Pin Sleeves • (28) W' Ring-Shank Nails • (2) #6 x %" Fh Woodscrews • (1 yd .) Wool Felt • (1) 11" Lid Chain w/Screws • (1) Posterboard ~c b//7221 4W - 96" Quartersawn White Oak (3.0 Sq. Ft. ) I Ft&rY5/t?B~+Jzzl r:l(J;J Y NOTE: Parts J, N, R, S, U, If, VI/, and Yare planed to 3fs" thick 38 Also needed: One 24 " x 48" sheet of 1fBn Maple plywood Woodsmith No. 183 Attractive and strong, finger joints are also easy to make with nothing more than a shop-made table saw jig and a dado blade. When I need an extra-strong corner joint to handle a heavy load, my first choice is a finger joint. The interlocking pins create so much glue surface that you're assured of a long-lasting joint. And the evenly spaced pins also give a great look to many projects, like the machinist's chest on page 30. But my favorite thing about the joint is that I can make the perfectly mated parts entirely on the table saw with just a simple, shop-made jig. IT'S ALL IN THE JIG. Of course, the pieces must fit perfectly for the joint to be effective, and that level of accuracy usually means some careful setup. But by building in a little adjustability to your jig, you won't waste a lot of time finetuning the fit. The key is how you make the jig and attach it to your miter gauge. If you take a look at the main drawing and the detail at right, you can see that I've added a pair of fences to the miter gauge. Woodsmith.com The rear fence mounts to the miter gauge with screws. It also features slightly oversize shank holes used to attach the front fence. These holes allow easy side-toside "tweaking" of the spaces' in between the cuts. The front fence is the business side of the jig. It holds a hardwood key offset from the blade by exactly the width of the cut to control the spacing of the pins. It also backs up Front fence (314" plywood) the workpiece to prevent tearout during the cuts. The jig is simple enough that I usually just make a new one for each project rather than try to adjust it to accommodate different sized finger joints. I'll go into the details of building the jig on the following page. Then it's just a matter of following a few simple guidelines and easy techniques to tum out perfect finger joints, every time. Rear fence (%" -thick hardwood) 39 FIRST: Position front fence with spacer against blade making the JOINTS You can start building the jig by selecting straight, flat material (I prefer Baltic birch plywood) for the front fence. The rear fence can be a piece of hardwood, also milled flat and straight. To allow for easy adjustment, drill oversize screwholes in the rear fence using a larger diameter bit than the screws used to attach the front fence. SmlNG UP THE CUT AND KEY. The drawings above show how to get started setting up the jig. Begin by installing a dado blade set to match the thickness of the pins for your project. In the case of the machinist's chest, I chose ~"-wide pins for the Yz"-thick workpieces. With the dado blade installed, set the height just below the thickness of the workpiece. Next, hold the front fence in position (don't attach it with screws yet) and make a cut through the fence. Now you'll need to cut a small piece of hardwood for the key. It's important to get a tight fit, but not so tight you need to force it in to the kerf on the fence. Make the piece for the key long enough to allow you to trim a bit off to use as a spacer. Now slide the jig up to the dado blade and put the spacer between the outside teeth of the blade and the indexing key. With the fence in position, you can now attach it to the rear fence with screws. TEST CUTS. Using a couple of test pieces milled to the same thickness and width as your project workpieces, cut the first notch with the edge against the key. Then make each successive cut by placing the freshly cut slot over the key, as shown in the photos on the opposite page. Once you've cut all the notches, flip the workpiece around and use the first pin as a spacer. Butt the mating workpiece against it and continue cutting. When you're done, check the fit. I like a tight fit, but not one that requires more than a light tap to seat properly. You can fine-tune the fit of the pins by moving the front fence very slightly as shown in the box below. CUTTING THE JOINTS. Once you've adjusted the jig for a good fit, you're ready to move on to cutting the project workpieces. But there are a couple of things to keep in How-Yo: Fine-Tune the Fit If pins fit tight or loose, adjust fence slightly Too Loose. If the joint has gaps between the pins, adjust the fence to move the key away from the blade. Short Pins. Short pins are the result of the blade being too low. Simply raise the blade slightly to correct the problem. 40 Too Tight. If the joint requires too much force, or won't go together at all, move the key toward the blade. If pins are too long or short, adj ust height of blade Woodsmith Long Pins. If the pins protrude too far (more than 113/'), you'll need to lower the blade for subsequent cuts. No. 183 ) First Cut. Maintain a firm grip to keep the workpiece squarely in position against the fence and tight against the key Cut and Repeat. As you move the workpiece after each cut, make sure the bottom edge stays flat on the table saw. Cut the Mating Piece. Flip the workpiece around to act as a spacer to cut the initial notch in the second piece. Complete the Second Workpiece. After you finish cutting the second workpiece, test the fit and adjust the jig if necessary mind while making the joinery cuts. First, hold the workpiece tight against the fence at all times. In the case of larger projects, particularly those that have wide and tall parts made of %"-thick stock, you might even want to clamp the workpiece to the fence for added safety and accuracy. The second thing to keep an eye on is to make sure the end of the workpiece is flat against the table for each cut. It can be frustrating to find out one of the pins wasn't cut deep enough when you're in the middle of an assembly. With those things in mind, it's just a matter of getting busy and cutting the rest of the parts. It's helpful to mark the workpieces to make sure you're starting your cuts from the same edge. I also stop after each matching set and make sure I'm getting a good fit and that the jig hasn't "crept" out of position. It only takes a minute to check and it can prevent bigger problems down the road. But as long as things are going well, you'll find the work goes quickly. ASSEMBLY. After you've completed the cuts, you can move on to assembling the project. Once again, Woodsmith.com if you've established a good setup, this is where it will payoff. Properly cut finger joints are easy to assemble and keep square. The biggest challenge is to work quickly enough to assemble the joint before the glue tacks up. A small brush makes spreading a thin coat of glue on all the mating surfaces a little easier, but it can still be a scramble to get things together. Once the glue is spread, all you need to do is tap the joints together and clamp them up. Trim to Fit. If needed, trim the workpieces so that each one ends with a full pin or notch for a more finished look. CLAMPING. The photo below shows how I clamped up the sides of the machinist's chest. A couple of plywood spacers fit inside and keep the assembly square as you apply clamping pressure to pull the joints tight. You can fully seat the sides with a few taps on the ends and then tighten up the clamps. Once you've made a jig and learned the ins and outs of using it, chances are you'll find plenty of applications for finger .joints in your future projects. m Shop Tip: Glue-Up Tips Add the Glue. A small brush makes spread- ing glue a breeze. And painters tape on the edge of the joint helps control squeezeout. Woodsmith a three-sided assembly can be tricky, so I used a couple pieces of plywood to keep things square. Squaring Blocks. Clamping 41 troubleshooting tips for your Jointer If your jointer is giving you fits, try a few of these remedies for some common jointer ailments. The jointer is a deceptively simple tool. All there is to using one is to turn it on and run your workpiece over the top. If everything is adjusted properly, you end up with a flat, straight edge (or face). But when you don't get the results you expect, tracking down the cause of the problem can be a real exercise in frustration. This is because more than most other tools, a jointer requires precise alignment and setup in order to work properly. Fortunately, most of the time the remedy is fairly simple. But determining the problem is half the battle. So here's a look at some of the more common jointer problems you may encounter and some steps on how to go about fixing them. No. 183 il'apered Cuts When jointing the edge of a board, a common problem is ending up with a tapered cut. In some cases, this can be caused by infeed and outfeed tables that aren't parallel. (See page 45 for more on this.) But a more common (and easier to fix) cause is an outfeed table that is just a bit higher than the jointer knives. As the board travels over the cutterhead, the outfeed table acts like a ramp, lifting the workpiece ever so slightly. After making several passes, the board will start to show a pronounced taper. The solution is to lower the outfeed table so that it's level with the height of the knives. To do this, place a straightedge on the outfeed table so it extends over the cutterhead (see main photo at upper right). Then rotate the cutterhead by hand until one of the knives is at top dead center. Next, loosen the table lock (usually found on the back of the jointer) and tum the table adjusting knob (or lever) until the straightedge just barely contacts the knife. A straightedge is used to check the height of the outfeed table. An adjustment knob raises or lowers the table. Snipe An outfeed table that is too low can lead to a different kind of problem - snipe. In this case, the jointer will work just fine through most of the cut. But once the trailing end of workpiece leaves the infeed table, it "drops" onto the outfeed table and the knives take a deeper cut along the last couple inches, as shown in the drawing at right. Here again, you can verify the problem by using a straightedge to check the height of the outfeed table in relationship to the knives. If the table is too low, simply raise it using the adjustment knob. -----~ --------.------ Workpiece drops, creating snipe Scalloped Cuts When properly adjusted, a jointer should leave a straight, smooth surface that doesn't need any sanding or touching up. But it's not unusual to discover a series of scallops or ripples along the freshly jointed edge of a board. Dull jointer knives can often be the cause of this. But if your knives are sharp, there are a couple of other things to look for. FEED RATE. Each knife takes a small, circular ''bite'' out of the wood. Ordinarily, these bites overlap so that you can't tell where one ends and the next one begins. But if you run a workpiece over the jointer too quickly, it can leave scallop marks. So the first thing to do is simply slow down the feed rate to see if that solves the problem . .l To set the height of the knives on this KNIFE HEIGHT. If slowjointer, loosen the gibs first. Then adjust ing down doesn't get the jack screws to lower the knife. rid of the problem, Woodsrnith.com Woodsrnith chances are one of the knives is sitting a little bit higher in the cutterhead than the others. With each revolution of the cutterhead, the raised knife takes a slightly deeper cut than the others. You can determine which knife is the culprit by using a straightedge and a set of feeler gauges. Then it's simply a matter of loosening the knife gib bolts and adjusting the height of the knife, just as you see in the photo shown at left. .l A wavy or High knife cut Low knife cut Uneven knives scalloped surface is usually a sign of a knife that needs adjusting. 43 Out of Square Edges One of the primary functions of a jointer is to create a straight edge that is square with the face of the board. A jointer that can't do this isn't of much value. Most out of square problems can be traced to fence alignment issues. The first step in fixing this problem is to do a simple check of your fence. Using an accurate square, check your fence at several points along its length to make sure that it's truly square to the jointer tables. If it's not, adjust the stops on your fence according to your owner's manual until the fence is square. Occasionally, you'll find a fence that isn't flat. A slight bow or crown in a jointer fence shouldn't really affect accuracy. But a jointer fence that's twisted or warped will make it nearly impossible to joint a square edge. You may be able to take a warped fence to a machine shop to have it ground flat. But a less expensive option is to add an auxiliary face. To do this, simply cut .. Check the fence at several points along its length to make sure it's square to a piece of %" plywood the infeed and outfeed tables. or MDF slightly longer and taller than the fence of your jointer. Then just attach it the face.) Then you can place paper to the fence with bolts (lower left or cardboard shims behind the auxphoto). (You may have to drill a iliary face to square it up with the couple of holes in the fence to attach jointer tables (right photo) . • After drilling a couple of mounting holes in the cast iron jointer fence, a plywood auxiliary face can be bolted in place. • To compensate for any twist in the jointer fence, shim the auxiliary face with pieces of posterboard or heavy paper. Surface Ridges Sooner or later~ you're going to get a nick in your jointer knives, resulting in a ridge along the jointed surface of the workpiece. But rather than resharpening the knives, there are a couple of other options. I Nicks in I (\ \ knives cause I I \ raised ridge L...-1----,,r--'""'-"-.... \ ....=J onwo~ v Jointer knives 44 If you're just edge jointing, it's simple enough to move the fence over so that you're using a different portion of the knives. But when you're jointing the face of a board, that isn't always possible. ! I (\ \ I I I \ \ Eliminate ridge by offsetting knives (( Jointer knives Woodsmith OFFSET KNIVES. In this case, you can often eliminate the ridges by slightly shifting one of the knives in the cutterhead. This offsets the nicks in the blades just enough so that they're no longer lined up, eliminating the ridge. There's just one thing to be aware of. If you use the rabbeting arm or ledge on your jointer for cutting rabbets, offsetting the knives will affect the width and accuracy of your finished rabbets. m No. 183 How-To: Align the Tables Most jointer problems can be remedied with a basic tuneup and some routine adjustments. But on occasion, you may run into a problem requiring more than a quick fix. (OPLANER TABLES. In order for a jointer to work properly, it's essential for the outfeed and infeed tables to be perfectly parallel, or "coplaner." If they aren't, you can end up with one of a number of problems, from tapered cuts to cuts that are concave or convex. Ideally, a jointer is checked for coplaner tables D efore it leaves the factory. However, over time, it's possible for the infeed and outfeed tables to sag out of alignment. The good news is that as long as the table castings aren't warped or twisted, most alignment problems can be remedied. STRAIGHTEDGE. In order to check your jointer tables for coplaner alignment, you really need a quality, accurate straightedge - the longer the better. (If you don't have an accurate straightedge, see our online tip for making one.) Start by using the straightedge to check each table individually. Be sure to check at several spots, both diagonally as well as along its length. The goal here is to make sure that both tables are flat. To shim the table into alignment, start by loosening the table lock and gib screws. Woodsmith.com Once you've finished with this check, raise the infeed table so that it's level with the outfeed table. Now, place the straightedge across both tables to see if they are coplaner across the entire length. (Here is where you really need a long straightedge.) Again, make this check near the edge of the tables and in the center. Then check diagonally as well. If the tables aren't coplaner, you'll notice gaps between the straight~dge and the surface of the table. Sometimes this misalignment can be caused by something as simple as sawdust and debris that has built up on the dovetailed ways that the tables slide on. You can clean the ways by lowering the tables and brushing out the debris with a nylon or brass bristle brush. SHIMMING. On older jointers, it's fairly common for the tables to start to sag and droop over time, usually at the ends. If this is the case with your jointer, you can bring the tables back into alignment by shimming. To do this, you can use brass shim stock (available from machinery supply dealers) or even aluminum cut from a soft drink can. Just loosen the gib screws along the edge of the table and slip the shim stock in place between the table casting and the dovetailed ways, as shown in the photos below. You'll need to shim the table along both sides. To raise the end of the table, place the shims near the bottom of the ways. To raise the table near the cutterhead, place the shims near the top of the ways. A machinist's straightedge is ideal for checking to make sure the infeed and outfeed tables are in the same plane. For information on making your own shop-made straightedge, visit our website at Woodsmith.com. Brass shim stock (or a piece of aluminum cut from a soda pop can) and can be inserted between the table and the base of the jointer. Make sure to shim the table on both sides. Woodsmith 45 Glaze left on edges and in recesses adds artificial age to a project. o Glazes Deeper, richer, more natural color on your project benefit offered by the simple technique of glazing. , A wide variety of staining products can be used as a glaze. 46 When it's time to apply the finish to a project, the routine is usually well set. You stain, then apply a seal coat, followed by the topcoats. But there are times when modifying this order can offer a nicer-looking end result. How about stain, seal, 'glaze, and finally, topcoat? WHY USE AGWE? The glaze applied in between the, sealer and topcoat is essentially a second coat of stain. And the list of benefits that can be derived from adding this glazing step is surprisingly long. A primary reason for using a glaze is to add more depth and richness to the color of the wood. The glaze simply lies on the sealer giving you an extra layer of color. The cherry board on the opposite page and the door above show this effect. Along the same lines, you can apply a glaze to adjust the color of a stained project. If, after applying a stain and sealer, the color isn't right, a glaze coat can often improve it. A glaze also works well to mask color differences within boards or between boards in a project. Since it sits on the surface, a glaze will very effectively hide a streak of sapwood in cherry or walnut. CONTRAST. The crown molding in the margin on the opposite page demonstrates how naturally finished oak benefits from a glaze. The dark glaze lodges mainly in the pores to add a subtle contrast. Woodsrnith that's the big AGE A PROJECT. Finally, one of the most cornmon reasons for using a glaze is to give a traditional project an authentic, aged appearance. The door in the photo above is a good example. This works in two ways. First, the glaze helps reproduce the rich, reddish-brown color of old cherry. Second, traces of glaze left on edges and in comers simulates the accumulation of grime and aging of the finish over the years, as in the inset photo above. WHAT DO I USE? There are a number of products that can be used as a glaze (margin photo at left). The cornmon thread is that a glaze should have a fairly thick consistency. This helps the glaze "cling" to the sealed surface. You can find formulations specifically designed for glazing. No. 183 These are essentially thick oil stains with a very slow drying time. This makes them easy to apply and to "manipulate" to the desired effect. You'll also find that thicker types of oil stains, as well as gel stains, also work well for glazing. Waterbased glazes are available, but due to their faster drying time, they can be a bit trickier to use. THE HOW-TO. Applying a glaze is one of the easiest finishlng techniques in the book. Since the wood has already been sealed, you have great flexibility and control of the final color and the overall appearance. If you don't like the result, you simply use a rag dampened with mineral spirits to remove the glaze and start over. SEAL FIRST. The box below shows how to use a glaze to create an "antiqued" look. The stain and sealer (or just sealer) come first. Here, you can generally follow your normal routine. You have a pretty wide range of sealers to choose from. A glaze can be applied over varnish, lacquer, shellac, or water-based finishes. The exceptions are oil or oil/ varnish mix finishes. They won't seal out the glaze properly. My personal preference is to seal the wood with a couple of thin coats of fast-drying shellac. Just make sure you seal the surface completely and evenly. Once the sealer is dry, lightly "scuff" sand with 320-grit sandpaper. This will help the glaze adhere to the finish. APPLY GLAZE. The glaze can be brushed or wiped on - similar to applying a stain. Your goal is simply to cover the surface thoroughly - neatness isn't a concern. And like a stain, you'll wipe the excess glaze off before it dries. .l The board above shows how a glaze can be used to give cherry a rich, naturally aged color. The left half was simply stained and sealed, the right half was stained, sealed, and then glazed. So try to limit yourself to a manageable area. WIPE IT OFF. Before the glaze tacks up, start wiping the surface with a clean rag. This step is the key. You control the look of the glaze by how aggressively you wipe. If your goal is to add age to the project, you can be less thorough - leaving glaze -on edges and in the recesses. When simply trying to enhance the color, wipe the surface clean with the grain, leaving only a thin film of glaze behlnd. A TOPCOAT. Like a stain, a glaze always needs to be protected with a topcoat. This can be any compatible finish. But when applying the topcoat, there are a couple of things to keep in mind. First, be sure the glaze is completely dry before finishlng over it. The glaze is lying on the sealer, not in the wood. If it's not dry, it can be lifted into the finish. Second, apply the first topcoat "gently." Avoid vigorous brushlng that might pull the glaze off the surface. In a nutshell, using a glaze can be an easy way to bring out the very best in a project. And once you give the technique a try, it's guaranteed to become a standard in your bag of finishlng tricks. m ! The glaze settled into the pores of the upper piece of oak crown adds a subtle contrast not seen in the unglazed piece below. How-Yo: Apply aGlaze .l After applying the initial stain, ! Once the sealer is dry and the seal the surface thoroughly with a couple of coats of 1-lb. cut shellac. surface lightly sanded, brush or wipe on a liberal coat of glaze. Woodsmith.com Woodsmith Use a clean rag to wipe the glaze from the flat surfaces, while leaving remnants in the recesses. 47 details of craftsmanship when to use TlNin Tenons When basic mortise and tenon joinery won't give you a strong glue joint, take a look at this tried and true variation. Mortise walls are long grain exposing maximum gluing surface A mortise and tenon joint is a traditional way to join two workpieces at right angles. It's a strong joint with a lot of gluing surface. But depending on the orientation of the workpieces, there are times when a simple mortise and tenon joint isn't the best choice. If that's the case, using a twin tenon can create a much stronger joint. HISTORY. The twin tenon has been employed for several centuries. It was first used in ship building, where it was necessary to keep large timbers from twisting or splitting. With side by side tenons in matching mortises, there's less likelihood of the tenoned workpiece twisting or warping. Later furniture craftsmen recognized the value of this joinery and started using it to join workpieces at right angles, such as a rail to a table leg. STRONGER JOINT. One of the best reasons for using a twin tenon in woodworking is to add gluing surHORIZONTAL TENON VERTICAL TENON face to the joint, since long grain or face grain provides a better gluing surface than porous end grain. In a conventional mortise and tenon joint, like the one shown in the left drawing below, the length of the mortise runs with the grain. This allows for the maximum long grain to long grain gluing surface between the mortise and tenon. But when I have a project that calls for the face of a rail to lay flat, I know that the long grain TWIN TENON Mortise walls are end grain, limiting long grain gluing surface Rail ;s installed vertically ("099";0 on tenon cheeks Vertical Tenon. A conventional mortise and tenon is a good choice when a vertical tenon is installed in a vertical mortise. 48 When a mortise is placed horizontally in a workpiece, the end grain gluing surface creates a weak joint. Horizontal Tenon. Woodsmith Twin Tenon. Cutting two vertical tenons creates multiple long grain gluing surfaces for more strength. No. 183 gluing surface will be limited. When a horizontal mortise is cut in the adjoining piece, it exposes mostly end grain, as shown in the center drawing on the bottom of the opposite page. Since end grain doesn't make good gluing surface, the result is a weak joint. MORE GLUING SURFACE. But a twin tenon solves this problem. By cutting two vertical mortises in the workpiece, you'll expose more long grain. So the twin tenon has four surfaces with long grain, as shown in the right drawing on the opposite page. This not only gives you more area for glue, but it keeps the part straight and true for a stronger joint. A good use of a twin tenon is shown in the main drawing on the opposite page. The rails need to lie flat to add support for the weight of the drawers. DRAWBACKS. With all these advantages of the twin tenon, you might think this is the best joint to use in any situation. But it has its place, just like any joinery does. For example, if the workpiece is extremely wide, this puts the tenons further apart, which may cause the part to split. Expansion, and contraction in the wood will cause both tenons to move in opposite directions. When they move, you may get the results that you were trying to avoid. The rail may twist and cause it to split. A good rule of thumb when using this joint is to keep the space between the two tenons approximately twice the depth of the shoulder (right drawing). If using this rule causes the tenons to be wide, then you might want to use another type of joinery for your project. MAKING THE JOINT When I use a mortise and tenon joint, I like to make the mortises first and then fit the tenons to the them. This way you'll have a perfectly matched joint. A twin tenon is cut almost like a single tenon, as you can see in the box at the bottom of the page. The only difference is removing the waste between the twin tenons. The easiest way to do this is on the table saw, using a tenon jig. MEASURING AND MARKING. The key to a good fit is accurate measuring and marking. So to start off, I take time to mark accurate layout lines. CUTTING. Once the joint is measured and marked, I cut the cheeks and short shoulders, as shown in the left drawings in the box below. Then it's just a matter of cutting a wide slot down the center of the tenon to create the twin tenons (right drawing below). The final step is to clean up any saw ridges left on the bottom of the tenon in the center and on the shoulders using a sharp chisel. NOTE: Width of tenon should not exceed height Locating Tenons. The space between the tenons should approximately equal the combined total of the shoulders. In this case, that means a spacing of % ". At this point, you can test the fit of the tenons in the mortises. If they're too tight, you can pare off the waste on the cheeks using a chisel. Your goal here is to get a snug fit, leaving enough room for a film of glue inside the joint. All that's left is to fit the tenon in the mortise and apply the clamps. Mortise and tenon joinery is a strong and lasting way to join two workpieces. I think you'll find that adding a twin mortise and tenon to your woodworking skills will keep the joinery on your projects holding strong for a long time. m How-Yo: Twin Tenon Basics / / / I / Auxiliary fence END VIEW 'I 'I II I F I II l I / / / AJ,... I I I I .L I ~ t----' Cheeks. Using a dado blade will make short work of removing the waste. Woodsmith.com / I fence END VIEW I I r--f(l \ I i(j '------' Shoulders. Flip the rail on edge to cut the short shoulders of the tenon. Tenon Jig. Clamp the rail to the tenoning jig to accurately cut the slot that creates a twin tenon. It's also important to apply downward pressure on the j ig while cutting away the waste in the center. Woodsmith 49 in the mailbox Questions &Answers Different Types of Tool Steels a rm confused by the different types of steel used by tool manufacturers. I see high carbon steel, high speed steel, and carbide. Why are there so many types and which is the best? Bert Manning National City, California A The answer to this question really depends on what kind of tool, blade, or bit you're talking about. But it hel ps to have an understanding of the different types of steel commonly used. HIGH CARBON STEEL All steel is chiefly an alloy of iron and carbon. But the amount of carbon mixed in with the iron makes a difference in the working characteristics of the steel. Steel with a relatively high carbon content can be hardened and tempered, and then honed to an extremely sharp edge. For this reason, high carbon steel (also known as "tool steel") is used for most hand tools like chisels, plane irons, and carving tools. HIGH SPEED STEEL One drawback to high carbon steel, however, is that it will lose its-temper if it's overheated. This isn't a huge problem with tools like chisels or plane irons. But tools that spin or travel at high speeds, like drill bits and saw blades, can quickly lose their edge or become ruined if they're allowed to overheat. In the late 19th century, steel manufacturers discovered that by adding certain elements to the steel (tungsten, vanadium, or 50 • Depending on the intended use, you'll find tools, blades, and bits made of high carbon steel, high speed steel, carbide, or coated steel. Each material has its own, unique working characteristics. molybdenum) they could create a steel that would continue to h61d an edge even at higher temperatures. This steel came to be known as "high speed steeL" High speed steel (HSS) is commonly used for drill bits, jointer and planer knives, and blades for jig saws and reciprocating saws. And high speed steel has all but replaced carbon steel in the manufacture of lathe turning tools. CARBIDE. Another material often used for cutting tools is tungsten carbide (often referred to simply as "carbide"). Carbide is not technically a steel. It's a compound made of tungsten and carbon. It's most often brazed or cemented to the edge of a cutting tool. Carbide is extremely hard and holds an edge much longer than either carbon steel or high speed steel. And it isn't affected by heat, either. Woodsmith Carbide has become the standard for circular saw blades and router bits. You can also find carbide-tipped band saw blades and carbide planer and jointer knives. But the high initial cost of these doesn't make them very practical for use in a home shop. COATINGS. There's one other thing you're likely to run across when shopping for tools. You may see bits or blades that feature a titanium nitride (TiN) coating. (Drill bits are a common example.) In this case, the TiN coating is applied over a high speed steel bit. The coating helps reduce friction, thereby minimizing heat build-up in the bit. It also protects the cutting edge of the bit. According to some manufacturer's claims, drill bits with TiN coating can last up to three times as long as uncoated bits. m No. 183 hardware & supplies Sources DRAWER LINING Adding a lining to a drawer is a good way to dress up a special project.You should be able to find many of the drawer lining materials shown in the article on page 8 at local fabric or craft stores. We purchased the wool felt from Weir Crafts. RockIer also carries a selection of felt, velvet, and vinyl drawer liners, as well as the supplies and equipment for flocking. bits and reversible bits shown on page 17. Amana, CMT, Freud, and MLCS are a few of the brands that we've used in our shop. DISPLAY SHELF One of the nice things about the display shelf on page 18 is that you don't need any special hardware to build it - just a few woodscrews.The stain we used is a mix rl.. ........... , C.,. ..... : ................ ..J _of th ...n.1""I. _""r+,... 7 ....... V I U II V'C tJ0 1 lO:> Loal ...... ',f;:11 Y vlalll dilU one part Jel'd Cherry Stain. LAYOUT TOOLS Most of the layout tools shown in the article on page 10 are common enough that they can be ordered through just about any woodworking cata log. But the re are a couple of items that deserve a special mention. When choosing a combination square, it pays to spend a little extra and get a high-quality tool. Starrett, Brown & Sharpe, and Mitutoyo are all top brands. The compass shown in the article is one of my favorites. It's made by General Tools, and can be purchased directly from the manufacturer's website (Item #842). STEP STOOL To build the step stool on page 22, you' ll need just a few pieces of hardwa re. The brass hinges (23590)' oak buttons (20503)' ra re-earth magnets (30810), and magnet cups (31668) all came from RockIer. Lee Valley also carries the rare-earth magnets (99K31.03) and cups (99K32.52), but not the hinges or buttons. The strap hinges and steel rod and bar stock used for the pivot pins and catch tabs were purchased at a local hardware store. The stain we used is General Finishes' Prairie Wheat Gel Stain. RAIL & STILE BITS MACHINIST'S CHEST Most router bit manufacturers offer a variety of rail and stile bit sets, as well as the one-piece One of the focal points of the machinist's chest on page 30 is the reproduction hardware. Most of the hardware items, including the pulls, corner guards, handle, hinges, latches, and lid cha in came from an online supplier MachinistChest.pom. They carry the most authentic-looking hardwa re that I've been able to find . But just to warn you, not all of the items they offer are currently displayed on t he website. They plan to offer a kit that includes most of the hardware used to build the chest. (You may be able to find similar versions of some of these items at RockIer, Lee Valley, Van Dyke's, or your local hardware store.) The only additional hardware you'll need are some 5mm shelf supports (00S10.01 ) used for the lid pins and some matching sleeves (00S10.61). These items were purchased from Lee Valley. The chest was stained with Varathane's Mission Oak Stain, and then finished with two coats of lacquer. ~ Onnne Customer Service Click on Magazine Customer Service at www_woodsmith_com • Acc~ your account status • Change your moiling Dr email address • Pay your bill • Renew your subsoiption • Tell us if you've missed an issue • Rnd out if your payment has been received MAIL ORDER SOURCES Project supplies may be ordered from the following companies: Woodsmith Store 800-444-7527 Rocking Supplies, Glazes, Layout Tools, RQ/7 & Stile Bits Amazon am.azon.com Layout Tools, Rail & Stile Bits Eneo 800-873-3626 use-encO.com Combination Squares General Tools 800-697-8665 generaltools.eom Compass Lee Valley 800-871-8158 leevalley.eom Hinges, Shelf Supports & Sleeves, Magnets & Cups MaehinistChest.eom 214-797-3943 machinistchestcom Machinist's Chest Hardware Rockler 800-279-4441 rockler.com Brass Hinges, Drawer Lining Material, Rocking Supplies, Glazes, Layout Tools, Machinist's Chest Hardware, Magnets, Oak Buttons, Rail & Stile Bits Van Dyke's Restorers 800-558-1234 a-VOLUME UBRARY SET Get all 8 hardbound volumes of Wooclsmith (Volumes 22 through 29). Each volume includes a year of issues, plus a table of contents and a handy index. vandykes.eom Machinist's Chest Hardware Weir Crafts 734-668-6992 weirdollsandcrafts.com Wool Felt Regular Price ................................... ~ Subscriber Discount Price .. .. .. $159.95 SAVE OVER $75 FREE SHIPPING on your entire order! Woodcraft 800-225-1153 woodcraftcom Individual volumes also available. (Offer expires 7/31/09) Go to Woodsmith.com Rocking Supplies, Glazes, Layout Tools, Router Bits or Call 1-800-444-7527 Today to Order Yours! Woodsmith.com Woodsmith 51