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box corner joinery

11K views 17 replies 8 participants last post by  Mike  
#1 ·
I have a ditty box given to me by my granddad. This chest has finger/box joint joinery for the chest exterior, (all 12 edges of the box eterior are box jointed) as well as the interior tray with dividers. I had an idea to make replicas of my ditty box for my nephews.
So, I started researching ways to make the joints. First place I went to was MLCS, since I saw an article in one of my wood working magazines. From there I saw demos of using table mounted router for making fancy looking joints and three sizes of box joints. Next I discovered INCRA jigs for making box joints as well as dovetail joints. While looking through my woodworking catalogs, I considered Leigh dovetail jigs. Now, a few years later, I still have not decided which joint is better, and have not started the ditty box replicas, for various other reasons.
But I do make boxes. I want to get away from mitered corners, as well as mitered corners with splines. I want to try something else with stronger, nicer appearance joinery. Which brings me to the question: which joint is better for boxes-dovetail or box joints? There are store bought jigs that make just box joints, while others make dovetails as well, and some allow variations in both types of joints. Cost of the jig will always be a concern. I cannot justify buying a particular dovetail jig that costs more than any one of my shop's power tools, for just making gift boxes, but maybe could if I made dovetail drawers as well with the same jig.
I have heard that with modern glues, box joints are just as strong as dovetail joints.
 
#2 ·
Liston, box joints work great for a strong nice looking joint. For some reason everyone gets the idea that they must use dovetail joints on projects and this just isn't true. You already know the variety of dovetail jigs out there so I am not going to cover that... pick one that fits your budget because they all work.

For box joints the Oak Park style box joint jig works the best. MLCS sells copies of these jigs made out of MDF but the Oak Park jigs are built out of HDPE.(and not available at this time) These jigs offer something most box joint jigs do not: the ability to make angled box joints like the one shown in the attached photos. All you have to do is cut your push block to the desired angle.

Note: Box joints are square, finger joints are tapered for end joining boards together.
 

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#3 ·
These jigs offer something most box joint jigs do not: the ability to make angled box joints like the one shown in the attached photos. All you have to do is cut your push block to the desired angle.
The Incra Jig(not ibox!) does that quite easily as well...and much,much more!
 

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#8 ·
Here are some photos of other Router Workshop projects that use angled box joints. You can purchase the Eplans from Oak Park.

Art, by angled dovetail joints do you mean offset to join table corners for using hanger bolts and table legs?
 

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#17 ·
I have wanted to reproduce an antique table that is the shape of your middle picture of the tray. I saw it at an auction but it went for over a thousand I was able to measure it up though. It uses dovetails on the eight corners but I would settle for box joints. Last year I spent the better part of a day making a dovetail jig that works on a band saw only to find that I couldn't do the angles.
 
#9 ·
I have pictures to show but not sure how to upload
 

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#14 ·
Hey MIKE, this question regarding your jigs for box joints:
what bits do you use for these box joints? seems like mlcs urges upcut spiral, but incra seems to prefer straight bits.
By the way, that's some nice work. That desk clock looks easier to build than the ones I built using a wood magazine plan
 
#15 ·
Liston, everyone has a method they prefer but both ways work; I use Spiral bits. Those last 3 photos are from the Router Workshop, not my work.
 
#16 ·
Cost of the jig will always be a concern. I cannot justify buying a particular dovetail jig that costs more than any one of my shop's power tools, for just making gift boxes, but maybe could if I made dovetail drawers as well with the same jig.
I have heard that with modern glues, box joints are just as strong as dovetail joints.
This is the jig I use for box joints in small boxes. It was demonstrated on Router Workshop and I fell in love with it. It's very simple to construct. It consists of a piece of plywood and a fence.
 

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#18 ·
Art, all you have to do is build one of the simple Router Workshop style jigs and cut your push block to the angle required. It doesn't get any easier than that.