Double Duty Box Joint Jig

  • Advertise with us
Project by ChrisJ posted 01-10-2012 09:32 PM 5558 views 16 times favorited 11 comments Add to Favorites Watch

I wanted to try out some box joints on my router table so spent a little time designing a jig. It struck me that I might want to do more than one size of box joints but I didn’t really want to build 2 jigs. I noticed that the router bit is not centered in the table and so I could combine both a 1/4” and 1/2” jig in one. It took a few test pieces to figure out the pin system but both sides work great. The 1/4” side works best on wood that’s 1/2” thick or less, though I’ve tried it with 3/4” with some success—just takes a lot of cleaning up afterwards.

Pics 1-3 are the jig itself
Pic 4 & 5 are PO Box door “safes” (not banks) made using the jig’s 1/2” side (3/4” lumber)
Pic 6 is a frame for a bulletin board made using the 1/4” side (about 1/4” thick lumber)

11 comments so far

View Michael Wilson's profile

Michael Wilson

588 posts in 3781 days

#1 posted 01-10-2012 11:33 PM

Nicely done. I’ve got to get around to building myself one of these.

View Tokolosi's profile


678 posts in 3646 days

#2 posted 01-11-2012 01:48 AM

There goes my saturday morning. Guess the lawn will have to wait. Have to build one of these now!!

Great looking jig

-- “There is nothing like looking, if you want to find something. You certainly usually find something, if you look, but it is not always quite the something you were after.” ~ JRR Tolkien

View a1Jim's profile


118297 posts in 4868 days

#3 posted 01-11-2012 04:07 AM

View TDSpade's profile


143 posts in 3706 days

#4 posted 01-11-2012 05:07 AM

I like this design as well. Are you using the miter slot at all?

-- For every expert, there is an equal and opposite expert.

View Ben's profile


302 posts in 3621 days

#5 posted 01-11-2012 05:44 AM

TDSpade, it looks to me like he has a guide that runs the edge of the table. If it had a miter bar, it would need to be switched to use the different sides

-- Welcome to downtown Coolsville, Population: US! --Hogarth Hughes

View JohnMeeley's profile


255 posts in 3624 days

#6 posted 01-11-2012 02:23 PM

I like the idea a lot. I’ll be working on my own edition soon. I’ve been messing around with a TS jig, that I’ve scrapped because of the inconvenience of blade changes midstream. Now if I’ll just get down to it, I’ll have fodder for my first post.

-- "The greatest pleasure in life is doing what others say you cannot do."-Walter Bagehot

View BinghamtonEd's profile


2298 posts in 3660 days

#7 posted 01-11-2012 03:10 PM

Very nice, I might have to make one of these this weekend!

-- - The mightiest oak in the forest is just a little nut that held its ground.

View PaBull's profile


970 posts in 4956 days

#8 posted 01-11-2012 05:40 PM

I like that two sided aspect of your jig, very clever!

-- rhykenologist and plant grower

View ChrisJ's profile


65 posts in 4110 days

#9 posted 01-11-2012 06:04 PM

TDSpade, Ben is right. It doesn’t use the miter slot, it has a guide on each side that runs along the side of the table.

View Backwood's profile


36 posts in 3624 days

#10 posted 01-11-2012 07:55 PM

Great idea!! (slapping forehead)Why didn’t I think of that? Since I left off the miter slot on my router table, I now see how I can build a box joint sled. Thanks a million!!

View TDSpade's profile


143 posts in 3706 days

#11 posted 01-12-2012 05:18 AM

Thanks Chris, I didn’t see the guide on the other side. This is timely for me as I have been looking at different designs of box joint jigs on the web. I think this one will work for me.

-- For every expert, there is an equal and opposite expert.

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics