45° Router Jig Boxes

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Project by KnickKnack posted 03-31-2011 01:59 PM 8377 views 32 times favorited 18 comments Add to Favorites Watch

I was starting to get a little frustrated at having to do everything at 90°, and, having no tiltable table saw, I decided to build a 45° router jig. I daresay it’s not unique, but I don’t recall seeing one before.
I’d originally just intended to use it for the 45° angles for drawer sides, boxes etc etc, but, in using it, I found that I could do a whole lot more!
The second box shown was the one I made first – I’d originally intended the sides to be flush and the oak to simply be splines, but, in trial fitting it, it seemed OK to have them as “extended splines”, so I went with that.
For the first box shown I tried to push the envelope out a little, and use an “extended sliding dovetail spline”. I think it came out pretty well.

The jig itself is shown in the last 2 pictures – it’s basically just a “platform” at 45 degrees – position a fence on the router table, clamp the wood to the jig, and cut. Slide the wood down, if required, and cut again. It’s shown setup for cutting the spline slots for box 2.

Both pieces are “post fumed” – the oak, of course, goes dark – the pine loses the “new wood” look, especially on what was very pink to start with, taking on a bit of a “deathly” palour, which I quite like.

As always, thoughts, comments, suggestions, bank transfers – most welcome.

-- "Do not speak – unless it improves on silence." --- "Following the rules and protecting the regulations is binding oneself without rope."

18 comments so far

View Sawdustonmyshoulder's profile


396 posts in 3047 days

#1 posted 03-31-2011 02:11 PM

Cool joints!!!!!!

-- Makin' Sawdust!!!

View jerrells's profile


891 posts in 2303 days

#2 posted 03-31-2011 02:57 PM

I love the 45 degree dovetail joint – UNIQUE

-- Just learning the craft my Lord and Savior Jesus Christ practiced.

View AaronK's profile


1436 posts in 2883 days

#3 posted 03-31-2011 03:26 PM

nice boxes! i dont think ive ever seen this before. did you basically sneak up on the fit for the splines themselves?

View devann's profile


2199 posts in 2111 days

#4 posted 03-31-2011 03:27 PM

Very cool joints, a box that looks good without a top. Thanks for pics #4 & 5 too.

-- Darrell, making more sawdust than I know what to do with

View richgreer's profile


4541 posts in 2493 days

#5 posted 03-31-2011 04:01 PM

I though I had seen every kind of joint there is on boxes. For me, this is a new one and I really like it. I also note the quality of your workmanship.

Well done – thank you for sharing.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View KnickKnack's profile


1062 posts in 2985 days

#6 posted 03-31-2011 05:45 PM

Thanks to everyone for the kind comments – I never thought I’d ever see a positive comments about my joints – I usually try to design so as to avoid them!

AaronK – yes. I “roughed out” the dovetail hole with a small, straight bit, before cutting it with the dovetail. Then I “snuck up” on the fit for the dovetail spline insert

-- "Do not speak – unless it improves on silence." --- "Following the rules and protecting the regulations is binding oneself without rope."

View a1Jim's profile


115171 posts in 2996 days

#7 posted 03-31-2011 05:58 PM

Interesting Idea well done

-- Custom furniture

View LesB's profile


1228 posts in 2861 days

#8 posted 03-31-2011 06:08 PM

There is always more than to get the results you want. Great solution.
Something similar would would also work on a non-tilting table saw or band saw.
The set up or jig created is usually based on how often you have to do that kind of work.
There are also 45 degree router bits that would be easier to use than a jig. In fact there are angled router bits used for making joints on multi sided boxes up to 12 sides. Some even have interlocking groves or notches in them for added strength of the joint.

-- Les B, Oregon

View fernandoindia's profile


1081 posts in 2362 days

#9 posted 03-31-2011 06:43 PM

Cool jig and perfect joint.

with Les B sugestion in the TS, there are endless joint decoration possibilities with that jig !

-- Back home. Fernando

View Wilton's profile


96 posts in 2110 days

#10 posted 03-31-2011 06:56 PM

Great joint idea. It is unique and shows artistic ability. Thank you for sharing.

-- Wilton, Phoenixville PA

View Diggerjacks's profile


2089 posts in 2557 days

#11 posted 03-31-2011 06:57 PM

Hello KnickKnack

A good job and a beautiful jig I love it
Simple and very effective ==> a very good jig

Thanks for sharing

-- Diggerjack-France ---The only limit is the limit of the mind and the mind has no limit

View woodcrafter47's profile


352 posts in 2524 days

#12 posted 03-31-2011 11:05 PM

WOW !! Now that is unique, Thanks for posting,keep up the great workings.

-- In His service ,Richard

View Toninho's profile


190 posts in 2246 days

#13 posted 04-01-2011 01:20 AM

I liked it mainly because it is very interesting joints and you also live in Portugal! I really appreciate your work! CONGRATULATIONS

-- António Guerreiro

View bigike's profile


4048 posts in 2707 days

#14 posted 04-01-2011 01:34 AM

very neat idea

-- Ike, Big Daddies Woodshop,

View BTKS's profile


1984 posts in 2883 days

#15 posted 04-01-2011 06:22 AM

Unique and eye catching. I really like these joints and contrasting wood for the splines. Thanks for the post, this one is headed for favorites.

-- "Man's ingenuity has outrun his intelligence" (Joseph Wood Krutch)

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