"Traditional Workbench - Jeff Greef Woodworking
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Traditional Workbench
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#1- TABLE SAW EXTENSION TABLES. In a shop where space is tight, permanent extension tables on the table saw are inconvenient. Attach hinged tables on the rear and/or at the sides, with hinged support legs
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Traditional Workbench - Jeff Greef Woodworking
beneath. The tables fold out and up, the legs down.
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Radial Arm Saw Tune-Up
Resources for building a Traditional Workbench
Chisels | Clamps | Dado Sets | Dowel Jigs and Dowels | Drill Bits | Drill Presses | Glues | Hand Drills | Jointers | Miter Gauges | Radial Arm Saws | Routers | Router Bits | Table Saws | Vises Traditional bench designs like this were meant to provide a work surface that was as stable as a rock. When woodworking was done entirely by hand a heavy, rigid bench was essential to the craft because joiners had to have a way of holding work still while they applied tools to it. While this is less necessary for a woodworker who plans to use machine techniques primarily, it's still very desirable. There's nothing more irritating than a wobbly bench, no matter what you're doing! As well, the traditional tail vise design on this bench is a very convenient means of clamping down work for hand planing as well as routing and belt sanding, by using bench dogs. Cut out list, Traditional Workbench All stock 3/4" thick (or 13/16", as it comes from the yard). 16- 4 x 27-1/2 posts 4- 4 x 33-1/2 posts 16- 3 x 32 rails 4- 3 x 18 rails 8- 3 x 3-1/4 rails 4- 3-3/4 x 10 rail feet 4- 3 x 60 lower stretchers 2- 3 x 50 lower stretchers 2- 1-1/2 x 44 upper stretchers 4- 1-1/2 x 19-1/2 side shelf rails 48- 1-1/2 x 84 top laminations
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Purchasing thick timbers for a project like this can be very expensive since such timbers are often several times more costly per board foot than 1x lumber. Glue laminating 1x lumber together to make the timbers and the top is therefore much cheaper, and serves other advantages. First, you can incorporate most of the mortise and tenon joints into the laminations themselves, saving yourself much labor and producing excellent joinery too. Secondly, laminated components are
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Traditional Workbench - Jeff Greef Woodworking
more stable than their solid counterparts since forces of wood movement in the boards tend to cancel each other in laminations. This is the best place to use up your most knotted, ugly, and twisted stock. Even if a piece has a knot or defect large enough that it would break if you stressed it at all, it will be fine inside a lamination so long as adjoining areas on adjacent boards are good. There are knots the size of your fist inside my laminations. You can't see them because they are located between layers, and the whole laminated timber is plenty strong because of its large size. As well, twisted pieces straighten out when clamped up as all the parts are pulled together. But, I suppose, you should avoid the very worst of your twisted stock. In order to create accurate joinery within the laminations, and to ensure that the edges of the laminations will line up fairly close, it's important to prepare the stock carefully. Look ahead and you'll see how the layers are held in alignment with each other with dowels placed within alignment holes. These holes must be located accurately on all pieces so that they will line up well, and you can't locate the holes well unless your stock is consistent. Therefore ripping to width and cutting to length must be done accurately. Here’s another reason to avoid the most twisted of your stock. Choose pieces that you can put a straight edge onto and rip to width consistently. Get out the parts as shown on the cutting list. Use knots and defects as mentioned before, but try to locate them away from joinery areas, and also try to have enough clear pieces to use on the outer laminations so that they will look nice. Use a straight edge jig on the table saw to straighten one edge on all your pieces, if you don’t have a jointer. This is very important and if you haven't built such a jig, and don't have a jointer, now is the time to build it. For jointers, click here. For table saws, click here. Once you have a straight edge on all parts, rip them to width on your table saw, and cut them off square at the radial arm or with a table saw cutoff box. For radial arm saws, click here. There are four pieces that get cut off at 10o, rather than square. These are the center end laminations for the stretcher wedge mortises, which must be angled to accept the wedges that hold the stretchers to the posts. Make these angled cuts with your miter gauge at the table saw.
Sure Lock Miter Gauge With fence and flip stop.
Photo 1- Cut mortises in the center post laminations for the smaller shelf support rails. Set up on the table saw with a miter gauge, and use the rip fence to establish the distance of the cuts from the end.
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Traditional Workbench - Jeff Greef Woodworking
For miter gauges, click here. Cut notches in the middle layers of the post laminations for the small shelf rails that run between the posts. Use your miter gauge at the table saw as shown in photo 1 to cut kerfs within the area of the notch, and use the rip fence as a guide to locate the outer two cuts. Make these 3/4" deep, and clean out the waste with a chisel.
Right Angle Miter Gauge
Delta Miter Jig Rigid, precise tool.
Photo 2- Align the laminations to each other with dowels in carefully located holes. Set up on the drill press to accurately place the holes.
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For drill presses, click here. Set up at the drill press to bore alignment holes in the laminations, as shown in photo 2. You could use a dowel jig to bore these holes (but only certain dowel jigs will work across these larger widths), or make your own dowel jig with a block of wood that has a guide hole in it for the drill bit. A drill press is the easiest way to locate the holes accurately. Bore enough holes in each group so that each piece will have two holes in it, guaranteeing that it will be aligned during the glue up. You might think that you can align the parts during glue up without dowels by tapping them back and forth as you tighten the clamps. You can also build a ladder to the moon if you have enough lumber. Send me some green cheese.
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Photo 3- Make mortises in the rails and stretchers by leaving voids in the center laminations. Note that each piece must have at least two dowels in it to ensure that it stays properly located. Seriously, glue is slippery and as the clamps are tightened parts will slip and slide making aligning them difficult at best. For the major mortise and tenon joints on the posts and rails to be tight, the parts must be very close, and dowels are your best insurance. Photo 3 shows how the mortise laminations for the rails and stretchers will appear after boring. The posts are similar, but since they have tenons rather than mortises they simply have one longer piece, the center lamination, and its ends become the tenons (see photo 7). Use a 17/64" bit to bore the holes, and use 1/4" dowels. The slightly oversize hole will not resist the dowels, and still align the parts well. Use an exterior grade water resistant glue, such as Titebond. Over the years your bench will be exposed to all kinds of conditions so prepare it
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for the worst. You'll probably go through a gallon of glue for the whole project.
Titebond Exterior Grade Glue
Photo 4- Glue together the laminations using a three inch wide paint roller. Use a lot of glue, and have hot water and rags close by to deal with the mess.
For glues, click here. Roll the glue on with 3" wide paint rollers as shown in photo 4. Don't try to clean the roller itself when done, just toss it. Apply a thick layer of glue to all adjoining surfaces as you put the layers together. The bare wood will absorb a lot of the glue as you work since there is much surface area, and you want to be sure that there is plenty there so that absorption does not starve the joint of glue.
3" Roller
Pipe Clamps One of the most versatile clamps, because you can use them with pipe of any length.
Photo 5- Gang clamp the laminations together, then use very hot water to remove as much glue as possible from the outside of the pieces, as well as within the mortises. Do the four rails together, then the four posts, and lastly the two stretchers. But don't apply glue to one of these three groups until you've clamped up the previous! Place one layer of wax paper between each of the rails, posts, or stretchers to keep them from getting glued together, and clamp up as in photo 5. Lift the clamps 1/2" off the wood so you can clean the glue
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underneath. Use very hot water to clean off as much glue as possible. It's easier to do it now than later by sanding. Clean out the mortises by placing a rag inside each mortise and moving it up and down as shown.
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Brown glue takes overnight to dry in warm weather, and longer in cold weather. When out of clamps, belt sand the parts with a 30 grit belt to remove remaining glue and level out the layers, which won't be perfectly aligned. Then belt sand again with 80 grit and then 120 if you like, to smooth out the surfaces. Set up a 3/4" wide dado in your table saw and raise it to 5/16" above the table. Use this to cut away around all four sides on the ends of the stretchers to a distance of 8-3/4" from their ends. This, effectively, makes the ends of these parts tenons that will fit through mortises in the posts. Clean up the ugly marks left by the dado with a sharp chisel. For dado sets, click here. Photo 6- Cut mortises in the posts for the lower stretchers. Mark out the mortises, bore holes within the marks, then clean out the waste with chisel and hammer.
Blue Chip Bevel Edge Chisels Good set of basic bench chisels.
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For chisels, click here. The only mortises you must chop by hand are in the posts for the stretchers. Note the exact size of the stretcher tenons, and mark out the posts at this size. Bore holes within your marks to clear out most of the waste in the mortises, then use chisels to complete them (photo 6). Gradually widen the mortises until the stretchers slide in neatly.
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The completed joints for the rails, posts, and stretchers should appear as in photo 7. Note that you must also cut shallow mortises for the lighter shelf stretchers that go above the main stretchers. Photo 7- Trim the walls of the stretcher mortises until the stretcher tenons slide in easily for rapid assembly and disassembly. The post tenons into the rail mortises can be a tighter fit, since they will go in only once.
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Cut angles on the ends of the rails at the table saw with the miter gauge and your blade set at 45o. Screw feet pads onto the bottom of the bottom rails using brass screws, which won't rust. Test the fit of the post tenons
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#32- ANGLED PLANER JIG. Plane an angle across the width of stock by building a jig that holds the stock at that angle along the width as it is run through the planer. The jig must also support the lower edge of the stock, else the pressure rollers push the piece down the incline. Make the cut in 1/16" to 1/8" increments.
into the rail mortises and trim the tenons if necessary. Pull the rail and post assemblies together with clamps, and don't use any glue. It probably wouldn't adhere because the mortise walls have dried glue on them from the lamination glue up, but anyway glue isn't necessary because the joints are so large and can be held together with screws. Don't forget to put in the short shelf rails between the posts before you put the rails on the posts. Bore holes for and install two 3" long brass screws in each of the postrail joints as shown in the drawing. These will only guarantee that the tenons won't come out of the mortises should the joints loosen from the gradual effects of moisture variation. But the strength of the joints comes from the mechanical fit of the tenons in the mortises, which you guaranteed by the careful alignment of the laminated joint components. Set the stretchers in the post mortises, and make wedges to tighten them down. Make these wedges on the table saw with a taper jig or on the band saw. Attach shelf support cleats around the inside perimeters of the upper shelf stretchers and main stretchers with countersunk screws, cut out plywood shelves to fit within, and notch the corners of the shelves to fit around the posts. Fix the shelves down with a few screws. For drill bits, click here. For hand drills, click here. Bench Top Photo 8- Set up the laminations for the bench top with dowels to orient each layer as before. Also bore holes in each layer for threaded rod that will hold together the separate slabs of the top. Use the same dowel alignment procedure to laminate together three
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plates for the bench top. But, also bore four sets of 9/16" holes in the layers for threaded rod to run through. This rod will hold all three plates together. Your bench top layers will appear as in photo 8 prior to gluing up. Again, you can use stock with knots and other defects, but turn those defects down toward the underside of the top, and try to get one clean edge on each layer. Straightening the edges of the layers is, as before, very important.
Pipe Clamps One of the most versatile clamps, because you can use them with pipe of any length.
Photo 9- When you glue and clamp the slabs, you must ensure that they stay reasonably flat. The layers can "wind" like an oriental fan, producing an interesting sculpture that is useless as a bench top.
Bessey Tradesman Bar Clamps
For clamps, click here. Glue up each of the plates as in photo 9. There is a serious danger present when gluing up a long lamination like this, that being that it will not be flat. The clamping pressure can tend to twist it, like an Oriental fan opening. To guarantee against this, place winding sticks on either end of the glue up to check the alignment. These are simply straight boards that show you if both ends of the lamination are parallel or not. Place the sticks perpendicular to the laminations. Align your sight along the tops of the two winding sticks, and you will quickly see if the two tops are not parallel. If not, the lamination is "unwinding" and you need to loosen the clamps, tweak the layers, and clamp up again. You won't be able to get it perfect, but you need to get it fairly close. The router planing jig will flatten minor twisting, but it won't make a silk purse out of a sow's ear.
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Porter Cable 1-3/4 HP Lever Release 690 Router The PC 690 line routers are standard woodshop workhorses.
Photo 10- Flatten each slab with this router planing setup. The two long guide rails upon which the router jig rides must be parallel to each other. The slab surface must be a uniform distance from the long guide rails at all points, or close to it.
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For routers, click here. For router bits, click here. Flatten the plates with a router planing setup as in photo 10 after the glue is dry. Use a 1" wide straight flute carbide bit to plane the surface. How flat the resulting surface comes out will be a function of how carefully you set up the guides that the router travels along during the cut. Check and double check your setup before you cut. The setup consists of two major components. The first is the base to which the router is attached. This is simply two guide bars with a piece of plywood between to which the router base is screwed. These two bars must be parallel to each other, and straight. The second component is the combination of long guide bars and clamps that you attach to the laminated plate. There are two things to watch f..."
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