Sure here's the sauce, I made one small tweak which was to route the bottom groove before attaching the sides so the sides act as a bumper when the trays are stacked, should make it easier to carry the stack
Nice, yea they are time consuming for such a simple project, especially that drilling 5 40mm holes per pair of trays 2 5/8" deep. These are just for fun don't intend to make these to sell, may end up making a few more over time if someone asks for a set or if I expand my chip collection beyond the racks I have.