Router Table Box Joint Jig

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Project by Dustmite97 posted 09-10-2009 03:28 AM 30496 views 6 times favorited 4 comments Add to Favorites Watch
Router Table Box Joint Jig
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If you have read my blog, you will know that I am just getting into box making and I’m starting to learn new joinery techniques. I wanted to try box joints, so I came up with this jig for my router table. It was pretty simple to make. The jig is made out of just one piece of MDF. If you can’t tell, the MDF is in an L shape. The L hangs over the side of the table as a guide. It also has the most important part which is the slot for the router bit. So here is how it works. The workpiece is clamped on the back of the jig with the drawn square on the workpiece matched to the slot for the router bit. A miter gauge is then used to push it through. I am very happy with it and it works great.

4 comments so far

View Wingstress's profile


339 posts in 4800 days

#1 posted 09-10-2009 03:43 AM

That’s cool. I’m not sure I get how the indexing point works and how you line it up with the mating side. I certainly like the “L” shape for stability and I like the simplicity. I posted something similar a while back you might like…
Click for details

-- Tom, Simsbury, CT

View stefang's profile


17040 posts in 4619 days

#2 posted 09-10-2009 10:03 AM

Inventive jig Dustmite, and most importantly, it works! I also took a look at your other posted projects and I was very impressed with your work. Looking forward to your future posts!

-- Mike, an American living in Norway.

View Dustmite97's profile


439 posts in 4505 days

#3 posted 09-12-2009 12:22 AM

Thank you!

View Ryanf's profile


32 posts in 4309 days

#4 posted 08-06-2010 08:13 PM

Very nice jig, I hope this is not a stupid question but do you make both the hole and the piece of wood that sticks out the same size and how do you determine the same size. I have never made a box joint and my father in law has asked me to make him a cigar box and didnt quit know the sizes that I should be making between them and what kind i router bit to use. I have straight dovetail and other ones. So basically do you use thick or slim bits and do you space them a certain distances apart.
Thank you,
Love the jig nice and simple and gets the job done.

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