I created this modular wall insert in order to be able to make adjustable router jigs on my workbench. This allows me to quickly mock up a router planing jig on my workbench to any size I need using the 3" spaced ¾" dog holes I have on my work bench. This modular system can be used to quickly mock up many different types of jigs.

I plan to implement spacers in order to allow for more height, as well as corner pieces to build things like a juice groove jig as well

Wall is 3" end to end, bench dog insert is 1.5" deep, wall is ¾" thick and ½" tall

Bed adhesion, and leveling is a must as you want the top of the wall to be a flat plane as a reference point for your jigs