And repeat the process! Oct 22, AM. If done correctly, the loose tenon will be perfectly placed to join the two pieces. You can do this in one of two ways… 1 You can use a combo square against the loose tenon router jig 12 edge of the platform and adjust the ruler so that the desired offset is past your centerline. Jjg Bushing.

To create a joint we mark a line where we want to position the tenon. The cutout in the lower plate helps to align the jig with the workpiece so that we can clamp it in place. Next we adjust the right depth of cut and create the mortise. While this jig is build quickly and without any special hardware you would have to build several versions for different material. First we want to create a possibility to adjust the width of the mortise.

Before gluing our plate together we will drill a hole in the two small side pieces, tap it with a M5 tap and add two small machine screws. Now we can glue the plate together as we did before.

It would also be great if we could adjust the jig so that the tenon sits centered in workpieces of a different width. Here you see me routing a wider but shallow recess and a 6mm slot in the plate. We carefully position it on top of the wider piece and use a 6 mm drill to mark the center of the slots.

In the position of the divet from the drill we drill and tap a 6 mm hole. Now we can screw the plates together and are able to easily adjust the width and the position of the slots. The third improvement is not strictly necessary but will make life quite a bit easier. In my 3dprinted version I used bookshelv pins to register the jig against the workpiece.

Here we want to take it one step further and route two parallel slots in the thicker plate. We also mark and drill equally sized holes in two more blocks. To use the jig adjust the distance of the screws with an Allen key to the right width. Next we adjust it to the material thickness and after centering the workpiece we lock the two blocks in place. While the setup is more time consuming than the setup of a Festool Domino the actual joinery is as quick and as accurate as with the original tool.

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Download PDF. Common applications: Frame corners Table apron-to-leg joints Polygon frames Miters Stretcher-to-rail connections. Sizing a loose-tenon joint The structure of a loose-tenon joint affords great mechanical strength in shear, and the large mating face-grain surfaces provide great adhesion for glue. Jigs allow speedy joint layout Because loose-tenon mortises are typically cut with a jig, joint layout is minimal. A simple T-jig does the trick This simple T-shaped mortising jig provides a platform for a plunge router outfitted with a template guide.

End mortising. Align the mortise and jig centerlines, clamp the jig to the stock, and rout. For cleanest cuts, first plunge to full depth at both ends of a mortise, and then clean out the waste between with a series of subsequently deeper cuts. Edge mortising. When edge mortising, you can either cantilever the workpiece out from a vise as shown, or forgo the clamps, and secure both workpiece and jig in the vise jaws. Drill out the through hole from both edges so that they meet in the middle.

And repeat, you should have two of these to attach the fence to the platform. This step is optional, but it is a cool way to mount the jig for hard to clamp situations. You will then have to make a separate board that has two corresponding slots in it for clamping. To assemble it, place the Dovetail Nuts with the glued on threaded rod into the dovetail slots on the underside of the platform. Then place the fence on those rods and loosely lock it into place.

This offset will determine the distance between the edge of the workpiece to the center of the mortise. Typically a mortise is made in the center of a workpiece, so the offset is usually set to half the thickness Loose Tenon Router Jig Ltd of your workpiece.

Then lock down the knobs. Then lock the fence in place making sure it is even on both sides. Whether you are using shop-made loose tenons or you purchase them premade, you will have to decide how wide the mortise will be. The width of the mortise is determined by the placement of the Width Stoppers that are screwed on the top of the platform. First mark out the desired width of your mortise onto a workpiece making sure to also draw a center line.

Then line up that center line with the center line that is built into the inside face of the jig. Using a Dovetail Clamp in the dovetail slots, clamp that piece to the fence. Now, remove the guide bushing from your router baseplate so you can easily see the router bit.

Slide the router over so the edge of the bit lines up with the edge of your desired mortise width. Then lock down one of the width stoppers on top of the platform. Repeat the process for the width stopper that is Loose Tenon Router Jig Unity on the Loose Tenon Router Jig 50 other side of the platform. Just an FYI, the width of this mortise should be ever so slightly wider than the width of the loose tenon you plan on using. Typically the depth of the mortise will be a little bit deeper than half the length of the loose tenon you are using to make room for some glue.

You can easily set this up using the depth stop function on your router base. Plunge the router down until the router hits your workpiece. Then use a spacer bar, like brass set up bars or just a scrap of the correct thickness to set the depth setting. If you are working with multiple pieces, you only need to do this set up process one time! Mark a line that goes across both pieces you want to join together.

Line up the center line from one of your workpieces with the center line that is scribed on the underside of the jig. If you are routing multiple pieces for a project you can add stops to the fence so all the mortises will be routed in the same exact location on all your parts.

Slide your router to one side, then plunge to full depth making a starter hole. Bring the router back up and slide it to the opposite side, plunge it all the way down to make a stopping hole. Now you can connect those two holes by taking shallow passes until the whole mortise is routed.

Now clamp the mating piece to the fence by using the center lines again or by using the a fence that you set up. If done correctly, the loose tenon will be perfectly placed to join the two pieces. If you make additional fence pieces that are rounded on one end, you can even make positive stops for angled pieces. You can just clamp your workpiece to a vise and then clamp this jig onto your workpiece.

Or you can simply clamp a board to your bench then clamp the jig directly to that board. Notice the picture below how you can also use the tracks in the bottom of the platform for clamping down a workpiece.

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