From my Regifted Jewelry Box, the Canadian Lock Joint (its what I named it) is unique to me because of the tab on the front of the drawer side. We have a couple chests of drawers that belonged to my in-laws. They were build about 65 years ago in Canada. With the drawer bottom in a groove the lock joint will never come apart. I can see they were made on a table saw. I’ve made them before using just the table saw. For the jewelry box I used the router table and table saw. That seemed to work out better for me.
The original joint.
I made the drawer sides using the table saw. With a additional fence and a dial indicator I first cut the front 1/8” tab in the 3/8” stock. Flipping the stock to get the tab in the middle.
Next I move the fence .250” away to cut the 1/8” slot.
The router table is used the machine the drawer front. With a 1/8” bit, .125” between the fence and bit and .375” height of bit I first cut the slot with the drawer front up and horizontal. I did the slot in three passes stacking 1/8” shims under the drawer front.
I cut the next slot with the drawer front vertical and face out. I also did that in three passes.
The finished front joint.
Now will the puzzle pieces fit.
With a little bit of carefull filing they go together.
Not show is the 1/8” plywood botton in a groove. Standard slide in construction.
My thoughts on the joint. Its plenty strong, not too hard to make if the set up is correct and not that bad looking. Thanks for looking.
-- Dan, Naperville IL, I.G.N.