router box joint jig - my way

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Project by Mike Gager posted 03-16-2011 04:58 AM 5708 views 16 times favorited 10 comments Add to Favorites Watch

i have been working on this jig for a little while and ive finally reached a point where it works really well so i figured id post it.

basically this is a box joint or finger joint jig that uses a template guide to guide the fixture. similar in theory to jigs that use a miter slot to guide except i dont have a miter slot so i had to come up with this.

anyways this particular jig is set up for 1/4” joints but you could make one set up for any spacing you wanted

it uses a 1/2 template guide and a 1/4” router bit. the bottom of the jig is grooved to fit the 1/2” guide and there is a positive stop at the rear to keep the router bit from coming out the back. i plan on redoing this jig and making a new base as this was my experimental set up and i did a lot of trial and error stuff, mainly in regard to dust collection. i finally gave up and just put the 4” hose straight to the jig and it works perfect

anyways hope you guys like it

10 comments so far

View kiefer's profile


5852 posts in 4164 days

#1 posted 03-16-2011 05:26 AM




-- Kiefer

View steliart's profile


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#2 posted 03-16-2011 08:47 AM

cool jig

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions !!!

View Splinterman's profile


23074 posts in 4858 days

#3 posted 03-16-2011 08:50 AM


View HalDougherty's profile


1820 posts in 4734 days

#4 posted 03-16-2011 11:54 AM

Great idea! And the results proves it works great too. You could also use your router edge guide to cut a miter slot in your table top, or build jigs with a support brace that rides against the outside edge of the table. That’s how I cut large items on my table saw.

-- Hal, Tennessee

View Tinnocker's profile


107 posts in 4498 days

#5 posted 03-16-2011 01:05 PM

I like it!

-- Ted, Browns Mills, NJ Darn! I cut it 3 times and it's still too short! I get ideas for things that I can make to make things easier for me to make!

View DaveTPilot's profile


282 posts in 4795 days

#6 posted 03-16-2011 01:58 PM

That’s really cool. I love it when people come up with non-conventional ways that turn out great results. Is that the MLCS router plate? Looks just like mine, I love it.

-- How valuable is time to a person who spends his disparaging the beliefs of others? --David Berthelette

View Mike Gager's profile

Mike Gager

665 posts in 4764 days

#7 posted 03-16-2011 04:28 PM

dave, yes it is

View StumpyNubs's profile


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#8 posted 03-17-2011 02:41 PM

Nothing like doing it “my way”- or I suppose in this case “your way”... I don’t expect you to do it “my way” anyway because you wouldn’t know what way “my way” is. Besides, I like “your way” of doing things better than “my way”. Any way- that’s one sweet jig…

-- Subscribe to "Stumpy Nubs Woodworking Journal"- One of the crafts' most unique publications:

View Mike Gager's profile

Mike Gager

665 posts in 4764 days

#9 posted 03-22-2011 03:26 AM

heres the first project i made using this jig

Click for details

View TIS's profile


12 posts in 4108 days

#10 posted 04-07-2011 05:06 PM

Great idea! I had made a jig similiar to this a few months ago. It looks like you can adjust the distant of the stop to the up cut bit from the pic. Unfortunately, I didn’t think of that at the time. What I ended up doing was having 2 pieces of steel milled to the exact dia. of the bit since none of them are truly the size they say they are. I first cut the dado for the bushing. Installed the bushing and flipped the piece of corian I used as a plate over and inserted the bushing. I put the 2 pieces of steel together along the edge of the plate and secured the fence tight against it. Removed the bushing and flipped the piece over to cut the top with the quarter inch up cut bit for a small dado to fit the 1/4” steel stop. Long drawn out explanation but the end result was a perfect non movable stop exactly the right distance from the bit that does not need to be adjusted!

Have to post a pic of it when I get a chance…I like your idea. Mayb you can use a 3/4” bushing to accomodate larger bits and only have to make the subfence to fit each bit leaving the base and fence alone. Cuts down on having a jig for every size bit!

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