Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Makers and small businesses who need a large enclosed build volume for engineering materials at a prosumer price — particularly those printing PA-CF, ABS, and PC at scale.
Full details →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 →| Qidi Tech Plus4 | Qidi Tech Max4 | |
|---|---|---|
| Tier | Prosumer | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | 305 × 305 × 280 mm | 390 × 390 × 340 mm |
| Max Speed | 600 mm/s | 800 mm/s |
| Multicolor | ✅ 4 slots | ✅ 4 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, PPS-CF |
| Released | Sep 20, 2024 | Dec 1, 2025 |
| Cycle length | ~408 days | — |
| Cycle advice | Wait | Buy |
| Deals advice | Buy | Caution |
| Next model | — | — |
One of the largest build volumes in the prosumer enclosed category — 40% more printable area than the Bambu X1C at a lower price point.
The second-generation active heating delivers consistent chamber temperatures for PA, PA-CF, ABS, ASA, and PC with minimal warping across the full build plate.
Handles high-performance engineering composites including PA-CF, PET-CF, and PPS-CF without requiring a separate hotend upgrade.
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.