X Spline Tablesaw Jig

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Project by Jim Jakosh posted 11-12-2013 07:24 PM 4966 views 43 times favorited 43 comments Add to Favorites Watch

I got this crazy idea about putting a stitch pattern of splines in the corner of a piece and started with making one X spline at a time. I first measured an X to find the angles and them made this jig to cut this 60 degree X pattern spline and also a 90 degree straight pattern spline. If I take the V block off, the sled can be used for a variety of things.

I have a Ryobi BT3000 table saw and it has no miter slots so I made the sled to slide along both sides of the center section of the saw.

I started by making the moveable V block with 3/4” maple plywood. I just glued two 9” long piece together …one 4” wide and the other 4 3/4” wide. Then I ran it through the table saw and cut a 45 degree on the bottom. I glued up another two pieces of plywood and then cut them at 45 degrees to make the side gussets. After I routed the gussets to be parallel to the V and the ends to be perpendicular to the V, I used my tenon jig for the router table to cut 1/2” deep rabbets into both ends of the V block and glued on some plywood into which I installed the brass locator rings.

After the V block was built, I figured out the what was needed for a sled so that the V block could swing 30 degrees both sides of center and also at 90 degrees. It came to 12” x 15”. I cut a shallow kerf cut in the sled and them drilled a hole up through the kerf and installed 1/8” pin. I drilled a 1/8” hole in the center of v block and aligned that hole with the hole in the sled and that became my pivot point for locating the V block at all angles. The locations of the brass rings and T nuts in the sled were transferred from the V block for perfect alignment in all positions. Then I made the brass locator pins and thumbscrews for locating and holding the V block in position.

I made an end stop for the V block that is just clamped in position.

The way I use it is to determine the center of the X spline and set the stop block that distance from the center line. Then I cut one side of the X in the part, take it off and make and finish the spline in it. Without moving the end stop, I flip the position of the V block to 30 degrees on the other side of center and load the part in and take another cut through the part. This cuts the first one in half and the second spline is actually the one doing the holding. The first one is just for looks. They are both cut through the same center that way. No chance of mis-alignment if the stop block is not moved.

The last shot shows the final X spline in the project I’m working on!

All parts are made from Maple plywood and it ins finished.

Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

43 comments so far

View Diggerjacks's profile


2290 posts in 3375 days

#1 posted 11-12-2013 07:32 PM

Hello Jim

A fantastic jig

A very original idea
I like it

Thanks for sharing

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

View MShort's profile


1797 posts in 3654 days

#2 posted 11-12-2013 07:34 PM

X marks the spot. Nice jig Jim. You are so creative.

-- Mike, Missouri --- “A positive life can not happen with a negative mind.” ---

View rance's profile


4267 posts in 3396 days

#3 posted 11-12-2013 07:35 PM

Pretty cool Jim.

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View Bytesabit's profile


79 posts in 2102 days

#4 posted 11-12-2013 07:35 PM


View doubleDD's profile


8038 posts in 2279 days

#5 posted 11-12-2013 07:37 PM

I still haven’t made a regular spline jig. You got me thinking. That should be an exclusive idea. The box makers out there will love it. Well done. I just may have to try it.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View yworkcb's profile


16 posts in 3289 days

#6 posted 11-12-2013 08:59 PM

I have that model saw and love it but your idea to just use the sides for your jig has so much potential .There are aftermarket miter slots you can add but then there can be alignment issues .Looks like I will be keeping it . ps If you need a belt for it let me know .

View Joe Lyddon's profile

Joe Lyddon

10364 posts in 4288 days

#7 posted 11-12-2013 09:04 PM

COOL “X” splines!

COOL design!

I don’t think I’ve seen those kind of Splines before…

Great job!

I used to have a BT3001… it had a Miter Gauge slot (I think)... Went out of adjustment too easily for me…
... Sold & got a Bosch… works much better…

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:"

View luv2learn's profile


2889 posts in 2539 days

#8 posted 11-12-2013 09:05 PM

Fantastic jig Jim. The X spline really dresses up the box.

-- Lee - Northern idaho~"If the women don't find you handsome, at least they ought to find you handy"~ Red Green

View majuvla's profile


13591 posts in 3103 days

#9 posted 11-12-2013 09:16 PM

Verry cool idea and looks awsome!

-- Ivan, Croatia, Wooddicted

View George_SA's profile


385 posts in 2449 days

#10 posted 11-12-2013 09:24 PM

Nice jig and cool idea on the X splines.

-- Sometimes life gets in the way of one's woodworking :)

View Doe's profile


1420 posts in 3066 days

#11 posted 11-12-2013 10:17 PM

Wow, that’s really neat!

-- Mother Nature talks, I try to listen

View a1Jim's profile


117417 posts in 3813 days

#12 posted 11-12-2013 11:03 PM

Great idea ,very well done.

-- wood crafting & woodworking classes

View HillbillyShooter's profile


5811 posts in 2528 days

#13 posted 11-12-2013 11:32 PM

Looks like a great jig—it certainly is innovative and gets the job done. Congratulations on a well thought out project!

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View poospleasures's profile


782 posts in 2720 days

#14 posted 11-12-2013 11:42 PM

You should write a book like “Wood work for Dummys” but we probably could not understand. Great jig. Thanks for always looking for another way.

-- I,ve had amnesia for as long as I can remember. Vernon

View ward63's profile


353 posts in 3323 days

#15 posted 11-13-2013 12:22 AM

Great idea! I also have the same saw. I was thinking that it looked a little unstable at the narrowness of it but you seem to have it clamped down pretty well.

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