Made a palm router jig to make spline cuts in the corners of boxes. Quite pleased with how well it worked (the box is the test piece). The cutouts allow you to
Table Saw Spline Jig — Rocky River Woodworks
How To: Creating Splined-Miter
Adding splines to mitered picture frames strengthens the joints, and the easiest way to create them on your router table is with a dedicated sled.
Router-Table Spline-Cutting Jig Woodworking Plan
Simple Spline Cutting Jig for Mitered Frame, WWGOA
Woodpeckers Spline Jig : : Tools & Home Improvement
Jax Design: Make a Simple Jig and Build Boxes with Decorative Splines
NEXT LEVEL spline jig for unique splines
How to Build a Spline Jig - Video
Frame Spline Jig by Gemmi, Download free STL model
ROUTER TABLE SPLINE JIG
How to Build a Spline Jig - Video
Have you built a spline jig yet?
Table Saw Spline Jig — Rocky River Woodworks
Eagle America Spline Jig - Concord Carpenter