Found this pic from my old shop showing a "Lynn's jig" for making box joints. In this pic you can see all four sides for two boxes being gang cut. This jig works with the saw or router.
I used to sell them on my old Mark's Woodworking web site.
"Lynn's box cutting jig" in action.
I used to sell them on my old Mark's Woodworking web site.
"Lynn's box cutting jig" in action.