Best budget enclosed 3D printers for common materials

Top pick: Creality K2 Plus Combo — the cheapest enclosed machine here with a genuinely big 350 mm cube chamber, a heated bed and a 600 mm/s CoreXY motion system, so ABS and ASA stay warp-free and PLA/PETG print fast. It's the one to buy if you want one printer that covers most of your list.

Who the others suit:

• Creality K2 Combo — same enclosed family, smaller footprint and the lowest entry point; best if you mostly print PLA and PETG and want to try ABS later.
• QIDI Plus 4 — the ABS/ASA specialist: high-temp hotend and chamber, listed for ABS, ASA, PA, PC and carbon-filled filaments. Pick it if engineering plastics matter more than TPU.
• Bambu Lab P2S / X2D — the easiest to live with day to day: polished software, fast setup, strong ratings. Best for beginners who'd rather not tinker.
• Bambu Lab H2D — dual extruders and a large build volume for multi-material work; the premium step up.

One caveat: none of these listings explicitly state TPU support, and TPU really wants a direct-drive extruder and slow speeds — check the spec sheet for the exact model before you commit if flexible filament is a must.