I wholeheartedly agree with PeterPan321. Those manufacturers make great cases and 3D printing, while useful, seems pointless to me unless you're looking for something not available off the shelf. Even then, the 3D print falls short if you need a transparent cover, or a NEMA4X (washdown-proof) rating, or any number of other structural properties. That off the shelf $20 polycarbonate case has a lot of engineering time put into it.
As far as laser cut enclosures, I've yet to find one that doesn't look completely ugly like something a 6 year-old put together for a craft class. Seriously, burnt wood edges is not a professional look! I have seen PROFESSIONAL enclosures for large machinery made out of wood and particle board and you'd never know what the material was. Those "snap together jigsaw cases" all look like crap in my opinion. And that's a pity, because you can do some great stuff with a laser cutter. It's just that the community has apparently decided to embrace the lowest common denominator design quality.
@OP:
My gotos are Polycase & Bud for plastic wall and desk mount enclosures. Hammond for metal enclosures (although Bud has some nice aluminum cast boxes). Serpac or OPC for handheld/belt mount types. Altech for industrial enclosures with electrical knockouts (although Polycase is now carrying those also).