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mortise-and-tenon-router-jig-plans-pdf-us The result is a very clean, accurate mortise, precisely placed. Make the mortises while the leg stock is still rectangular, before any shaping of the legs. A problem with such a joint is that the mortise must be spaced inwardly in an amount sufficient, in terms of the depicted distance d, that the mortise is not cut through the outer mortise and tenon router jig plans pdf us of member jgi Also formed in the template is a tongue centered on that line, disposed toward the other of the side margins from routr opening and positioned between a pair of open spaces defined through the template. Sandpaper Ripping Jig Plan.

A Dado Jig for the Router. Router Dado Jig. Exact-Width Dado Jig. Adjustable Dado Jig. Router Dado Cutting Jig. Adjustable Dado Jig for Routers. Mortising jig. Hinge Mortise Jig. Router Circle-Cutting Jig. Router Small Circle Jig. Router circle jig pics, no plan. Backing blocks are desired to insure against either tearing out of wood or the making of surface markings via the use of C-clamps.

The operator is advised to mark all outwardly-facing surfaces ultimately to be shown, just to avoid possible subsequent confusion during assembly. In beginning the shaping of any mortise, the router should first be tipped toward its ultimate position with observation of the cutting operation. After the mortise is first started, it is preferred for ultimate accuracy that all cuttings be removed before completing the formation of the mortise. When it is desired to form a double or triple tenon, the grooves are so located relative one to another that it is only necessary to move the template over one pin at which time the workpiece remains positioned.

Once completed, such a double or triple tenon will exactly fit into a double or triple mortise, respectively. In taking advantage of the symmetry provided as between the location of the opening, the spaces in the template and the grooves on the stage, it is to be noted that the workpiece always is to be clamped to the more central side of stop board The arrangements illustrated also lend themselves well to the making of other than right-angle joints, including joints that may be at any random angle.

An example of such a random angle joint is illustrated in FIG. A problem with such a joint is that the mortise must be spaced inwardly in an amount sufficient, in terms of the depicted distance d, that the mortise is not cut through the outer edge of member That and similar problems are avoided by the use of one or more shims and an angled stop block as shown in FIG.

All those additional accessory components preferably are made at the job site by the workman. Gapping board is snugged into or in front of the gap formed between template 20 and stage Double-angled stop block is fabricated at the same time that the wood members to be joined are cut.

Again, it may be simply a piece of scrap. To set up for joint formation at an arbitrary angle, gapping board is chosen so as to accommodate the distance d shown in FIG. Block is mounted against the stage and up against gapping board , whereupon block is secured by a clamp as in FIG.

At this point, it is only necessary to secure board in place by another C-clamp a as shown in FIG. When a double or triple mortise is desired, template 20 is simply moved over one pin.

The corresponding tenon is analogously made. In this case, it is necessary first to insert an additional gapping board between template 20 and stage 60, with board spaced therebeneath as shown in FIG.

Gapping board has a thickness equal to the desired depth of tenon In using gapping boards, stop block is snugged up against gapping board After block has been clamped into place, both gapping boards and are removed. In placing board in appropriate position, tenon is formed in the manner previously described. Once more, the formation of a double tenon, if desired, is achieved by subsequently moving template 20 to the next successive pin. It may be noted that, whenever moving stop block for making a double or triple joint, the overall geometry is such that block should never be moved so that board or board is positioned farther from the center of stage 60 than is block It will be observed that spacer or gapping board serves as a memory.

No markings are necessary on the workpiece itself. Even with the use of stop block , the results are accurate, because that block is cut with the same saw used to cut the workpieces themselves. That is, there is no error added by the jig. Once the craftsman becomes familiar with use of the jig assembly first for the shaping of simple right-angle joints and then for the shaping of random angle joints, other available variations in use will become apparent.

For example, compound angles, may be readily formed. Those are angles which require that, for completion, the workpieces be tilted away from the plane of stage For that purpose, a wedge is made. Such a wedge is placed against the stage and marked so that grooves may be cut thereinto for enabling a positioning of the stage by the use of shims.

When a very steep wedge angle is needed, it is preferred to cut the wedge and mount it first to guide 22 after which stage 60 is mounted on top of the wedge. In such an application, care must be taken to insure that both symmetry and alignment are heeded. In time, the user will probably collect a "library" of various wedges, stop blocks, gapping boards and shims, each labeled as to their specific use and the angles formed. A rather structurally simple assembly has been described with appropriate detail as to dimensioning and relative orientation of the different components.

It, nevertheless, is extremely versatile in connection with the formation of a variety of joints that have respectively different angles. At the same time, the inherent approach is that of assuring the accurate fit of mating parts and with tight tolerances.

While a particular embodiment of the invention has been shown and described in detail, and various modifications and alternatives have been described and discussed, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention and its broader aspects. Therefore, the aim in the appended claims is to cover all such changes and Router Mortise And Tenon Jig Nat modifications as fall within the true spirit and scope of that which is patentable.

We claim: 1. A patterning jig comprising: a flat template having space-opposed side margins joined by respective front and rear margins;.

A jig as defined in claim 1 in which the width of said opening in the direction transverse to said line equivalent to the width of each of said open spaces in said direction. A jig as defined in claim 1 in which the base of said tongue is located midway along said line between said side margins.

A jig as defined in claim 1 in which each of said spaces defines a slot disposed alongside said tongue and effectively continuing beyond said tongue toward said other side margin. A jig as defined in claim 1 which includes means for removably mounting said template in fixed position with respect to said guide.

A jig as defined in claim 5 in which said mounting means enables flipping said template, side-for-side, with the alignment and location of said line with respect to said guide retained. A jig as defined in claim 1 which further includes an elongated flat stage seatable against said guide beneath said template, said stage having a plurality of constant-width vertical grooves spaced in succession between the opposite ends of the stage. A jig as defined in claim 7 in which said grooves are symmetrically distributed on opposite sides of a midpoint of the symmetry defined by the locations of said opening and said tongue.

A jig as defined in claim 7 which includes means for mounting said stage in a selectively fixed location with respect to said guide and said template.

A jig as defined in claim 7 in which successive ones of said grooves are located outwardly from respective opposing ends of said opening by a predetermined distance which represents a desired mortise-to-edge spacing obtained in use when shaping a mortise through said opening.

Register the position of the leg blank on the bench top with a stop block, then secure it with the tail vise and a bench dog. Then position the bit at one end of the mortise and clamp a block to the bench to limit the base of the jig at that point. Do the same for the other end of the mortise. These end stops remain in place so when each successive leg blank is positioned against the leg stop block, each mortise will be located in exactly the same place. Caution: The photos show the bit lowered to contact the surface of the wood only to make the settings.

Never start the router with the bit in contact with the wood! The mortise is cut in shallow passes. However, it is important to listen to the router while working with ear protection to sense if it is being overtaxed. The RPM, depth Mortise And Tenon Router Jig Plans Pdf Mac of cut, and lateral advancement speed are altered as needed. I plunge the bit, lock the lever and push the router. At the far end, I release the lock, plunge again, relock and pull the router back, and so forth.

The intermediate steps on the turret are helpful to avoid accidentally plunging too deep but they are spaced too far apart so I simply estimate smaller plunge depths within the built-in steps. The end point is when the depth stop meets the lowest turret step, which was used in the depth adjustment process.

Like all mortises produced with a router, the ends are rounded. The ends can be squared with a chisel, but it is easier to simply round or chamfer the edges of the tenon to fit. In summary, mortising can be done very efficiently with this method using a plunge router and a minimum of added equipment. Discussion Click here to cancel reply. Remember me. Lost your password? Privacy Policy.

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