What kind of tolerances do you get on your plywood cuts? Lasersaur is claiming they get down to 30μm on some materials. I'd think plywood would be more like 200μm, from what I've read, but I don't have any real experiences.
1/8" plywood is about 70 micron tolerances, once you account for kerf. This is dependent upon not getting super fine tiny thin pieces that tend to warp.
1/4" plywood-- there's a whole lot of taper and edges aren't quite square. Multipass helps a little bit. Probably about half a millimeter of taper? For most things it just does not matter.
Just one more note: my default construction material at this point for many things is sandwiches of 3D printed nylon innards with sheets of plywood or acrylic on the outside, all screwed together with M3 or M4 screws. It is stronk and fast to fabricate.
