I wound up buying 3 2' x 4' plywood sheets for laser cutting, and cutting each into 2 18" x 24" sections which is size of the bed of the laser cutter. The parts shown in the photos below turned out decent enough to put together, but the top and sides turned out terrible. The material was cheap wood and was bowed, so the laser cutter head would sometimes drag it on the bed and the end point of the cut wouldn't meet the start point. I am going to get some acrylic and either cut the entire thing again or just the tops and sides so you can see into it.