Table Saw Spline Jig

This table saw spline jig is adjustable and makes splines super easy to make!

I begin this project by cutting some oak runners that will fit in my track/groove on my table saw.

I then cut down all of my 3/4” plywood pieces needed for the jig.

I set my table saw blade to a 45-degree angle.

I now cut a 45-degree angle on one side of the main jig piece. This will become a miter joint that creates the spline.

I cut some angled braces that will support the main piece.

I cut a dado groove in the main piece that will allow a t-track to be recessed. The T-track will allow the vertical supports to be adjustable.

I then install the t-track into the dado.

I install the angled support pieces on the back of the main piece.

I screw through the bottom of the base plate piece for extra security.

I then cut and assembly the vertical supports.

I slide the vertical support assemblies onto the t-track bolts and install the knobs.

This jig is now complete!