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Project Information

After tons of research online and help from my LJ's buddies I designed my own box joint jig for a router table without a sliding mortise track..

This project took much longer than I thought because of the minute adjustments I had to make in the jigs final position and secure the cleat.. But it's done and the fingers are a little loose but they fit together like a dream with just enough real estate to glue up a joint…

The basic design is " L" form with a cleat that overhangs the table to slide it though the straight bit.

I had some leftover poplar so I used that and I also had 1/2" square dowel left so I used that as the key…

Because I cut a Chanel all the though the jig I supported the back with some scrap plywood L brackets held together with glue and pocket joinery … And the back of the jig where the channel comes out of the jig I placed a scrap piece of plywood to keep the jig square to the table and cutting bit…

I'm delighted with the results and it didn't cost me much

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Comments

· Registered
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19,715 Posts
Good job.it takes time to zero in box joint jigs.
 

· Registered
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485 Posts
Good job.it takes time to zero in box joint jigs.

- a1Jim
No kidding
 

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485 Posts
Good job.it takes time to zero in box joint jigs.

- a1Jim

No kidding
Thank you

- edwood1975
 

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885 Posts
Nice job, Ed. Glad you got it all sorted out.
 

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23 Posts
Perfect. Though I am not sure I understand how it works. I wish to make one!
 

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485 Posts
Perfect. Though I am not sure I understand how it works. I wish to make one!

- Shuja
Hi there..

I'm new to this joint as well so I'll explain as best I can..

The purpose of the jig is to line up the piece of wood to the cutting bit ( 1/2" straight bit in my case) and the jig is used to space the slots and fingers of the joint easily so as that they fit together to form a 90° corner..

Depending on whether you want to start the joint line with a slot or a finger is determined with the use of a 1/2" key ( hardwood square dowel that's glued into the jigs face) if you want to start with a slot you first have to align a spacer to the key and abut your workpiece up to that spacer so as to achieve a corner cut
 
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