Corner spline jig

It wasn’t long after I built my outfeed table and crosscut sled that I built this corner spline jig. A project I had started was going to need spline corners so it was time for the jig.

The fun thing about this project was that I just used scrap materials and designed as I went. I had to think a bit about how to get the fence adjustment to fit.

The box has two oak ends. There are formica covered plywood side panels and cradle sides (does the formica look familiar?). These panels are positioned on plywood supports on the inside of the oak ends.

The jig locks into place onto my crosscut sled using one of the pivot holes for the miter fence.

A t-slot rail on the top of the box allows me to position the fence so I can locate the slots accurately. The rail extends past the box to enable 2 locking bolts to hold the fence squarely.

The platform is wide enough for a 5" tall piece to be placed on either side of the blade. If I happen to need slots cut on a wider piece, I can lay a 1/2" piece of stock in each side of the cradle and extend the piece past the V-shaped opening on the left side. I can also re-position the jig along the t-slot rail on my crosscut sled.
 
I probably spent more time making this jig than I will using it, but it has come in very handy over the years.