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Spline cutting jig for cross cut sled

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Project by lumberjoe posted 07-20-2012 08:15 PM 2862 views 14 times favorited 22 comments Add to Favorites Watch

Yes it’s ugly, yes it’s a hack, but it works.

I am working on a box now (thanks to boxguy for tips and inspiration) and I have never really made a GOOD one using proper technique. I am not overly thrilled with the look of box joints or dovetails. I purchased a lock miter bit, but am not super happy with the fit. It’s REALLY tight without glue. That leaves me with the dreaded splines. I don’t know why, but I have always been terrified of splined miters.
I decided to give it a go. I had an old cross cut sled that I took all the t-tracks and good stuff off of. I was going to chop it down to make a spline cutting jig, but then I had an idea. I just made one that attached to the sled with the t-track clamps!
I cut the 1/2 plywood into two wide pieces and two narrow pieces. I then put two identical speed squares up against the cross cut fence to get my 45 degree angle.

I layed the plywood on the speed squares and applied some glue to the edges. I attached the sides with clamps and some 18awg brads.
I then put the the other angled piece on. I glued the edges and loosely clamped it to the sides. I slid my speed squares under to get it aligned then hammered down on the clamps and drove some brads.

After that I attached 2 pieces of 3/4” ply to the sides so I would be able to clamp them with the T-track clamps.

The block inside is what I use for a stop block.I just clamp it in place with a quick grip 90 degree clamp.

It works AWESOME! I am no longer afraid of splined miters.

-- www.etsy.com/shop/KandJWoodCrafts





22 comments so far

View a1Jim's profile

a1Jim

112030 posts in 2215 days


#1 posted 07-20-2012 11:23 PM

Looks good Joe

-- http://artisticwoodstudio.com Custom furniture

View lumberjoe's profile

lumberjoe

2833 posts in 886 days


#2 posted 07-20-2012 11:58 PM

No, it looks terrible! But it works good. I just cut the top of my box and started the finishing project.

-- www.etsy.com/shop/KandJWoodCrafts

View Alexandre's profile

Alexandre

1417 posts in 829 days


#3 posted 07-21-2012 12:01 AM

Joe, Found your pickup truck yet?
Nice jig, Looks Horribly awesome!

-- My terrible signature...

View lumberjoe's profile

lumberjoe

2833 posts in 886 days


#4 posted 07-21-2012 12:13 AM

Holding out for a good used one to pop up. It’s definitely not pretty, but it gets the job done. I’m pretty sure that’s how my wife describes me to her friends.

-- www.etsy.com/shop/KandJWoodCrafts

View Arlin Eastman's profile

Arlin Eastman

1998 posts in 1199 days


#5 posted 07-21-2012 12:15 AM

Wow

I think that looks neat to use. I always wanted to make something like that.

Arlin

-- It is always the right time, to do the right thing.

View dnick's profile

dnick

916 posts in 1020 days


#6 posted 07-21-2012 12:15 AM

What a good idea. It does what you want it to do & that makes it a great jig.

-- dnick, North Hollywood, Ca.

View Alexandre's profile

Alexandre

1417 posts in 829 days


#7 posted 07-21-2012 12:15 AM

Joe, Since I’m at NY, I decided to go to toolsforworkingwood….
Guess what I bought…
Everyone should know by now… A Japanese chisel….

-- My terrible signature...

View robdem's profile

robdem

324 posts in 1244 days


#8 posted 07-21-2012 12:51 AM

Joe doesn’t have to be pretty just has to work .

View lumberjoe's profile

lumberjoe

2833 posts in 886 days


#9 posted 07-21-2012 12:55 AM

Thanks guys. I agree, but I have remade stuff that “works” just so it is also pretty. I’m pretty impressed this worked. I am also pretty impressed it took me about 15 minutes to make. I think I may start to be getting good at this woodworking stuff (well, jigs anyway)

-- www.etsy.com/shop/KandJWoodCrafts

View JamesN's profile

JamesN

26 posts in 807 days


#10 posted 07-21-2012 02:38 AM

Not sure if you might find yourself limited on box size with this jig in the future, but if you do, you can just cut out the wood for your side walls that covers the ends of your 45 degree boards. Cut it flush to the 45 degree boards and you can slap any size box in there you want to put splines in.

I plan on making something like this in the very near future myself :)

View lumberjoe's profile

lumberjoe

2833 posts in 886 days


#11 posted 07-21-2012 12:41 PM

JamesN, good idea and I planned on doing that. This is 14” long, so I’m good for a box up to 14” tall. Since this rides on the sled, I am only going to cut one side off. I can re-position the jig on the sled if need be

-- www.etsy.com/shop/KandJWoodCrafts

View helluvawreck's profile

helluvawreck

15661 posts in 1504 days


#12 posted 07-21-2012 01:22 PM

It’s a very nice jig. Congratulations.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View abie's profile

abie

595 posts in 2408 days


#13 posted 07-21-2012 02:55 PM

Nice I alwya like jigs that attach to other so that they are modular and serve several purposes.
so what if it is not pretty.. it works doesnt it…

-- Bruce. a mind is like a book it is only useful when open.

View Bob817's profile

Bob817

650 posts in 1020 days


#14 posted 07-21-2012 05:10 PM

Hey Joe as you can tell everybody loves jigs, me included. Made it to #1 Alright that’s Awsome good for you Congrats!

-- ~ Bob ~ Newton, N.H.

View SergeantSawDust's profile

SergeantSawDust

173 posts in 819 days


#15 posted 07-21-2012 07:13 PM

I think that’s a really nice cross cut sled accessory actually.. Pretty cool. Thanks for sharing.

-- Woodworking for the hobbyist woodworker. http://sergeantsawdust.com

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