First-generation product — recently released, still early days
Best for: Professional makers and small studios who need the maximum enclosed build volume in Qidi's lineup for large engineering parts, architectural models, or batch production — at a price point below the Bambu H2S.
Full details →This printer is no longer sold new. It has been replaced by the Bambu Lab H2S.
Best for: Professional makers and small studios who need dual-material printing for engineering parts with soluble supports — or true dual-color without purge waste.
Full details →| Qidi Tech Max4 | Bambu Lab H2D | |
|---|---|---|
| Tier | Professional | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | 390 × 390 × 340 mm | 350 × 320 × 325 mm |
| Max Speed | 800 mm/s | 600 mm/s |
| Multicolor | ✅ 4 slots | ✅ 2 slots |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ❌ |
| Upgrade Kit | — | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PA-CF, PC, PPS-CF | PLA, PETG, ABS, ASA, TPU, PA, PA-CF, PC, PETG-CF |
| Released | Dec 1, 2025 | Nov 15, 2024 |
| Cycle length | — | ~210 days |
| Cycle advice | Buy | Superseded |
| Deals advice | Caution | Clearance |
| Next model | — | — |
The Max4 offers the largest build volume in Qidi's lineup — enabling large functional parts, architectural models, and production batch runs that exceed Plus4 capacity.
The Max4's closed-loop XY adds positional feedback for improved accuracy at high speeds — a differentiating feature at this price tier that reduces dimensional errors on large prints.
Qidi's proven active chamber heating technology scaled to a 390×390 mm bed — critical for consistent ABS, ASA, PA-CF, and PPS-CF results across the full build plate.
The H2D prints two materials simultaneously from two nozzles. This eliminates purge tower waste and enables true dual-material prints including PVA/PLA soluble support combinations.
350×320×325 mm gives more print area than the standard 256 mm Bambu models — suited for larger professional parts.
The H2D supports a wide range of engineering filaments including PA-CF, PETG-CF, and PC with its enclosed chamber.