Mid-cycle — watch for announcements before buying
Best for: Makers who want CoreXY speed and precision with Prusa's open-source ethos, community support, and long-term repairability — without Bambu's closed ecosystem.
Full details →Late in cycle — a new model is likely coming soon
Best for: Makers who want large prints and multicolor capability without an enclosure — ideal for PLA, PETG, and flexible materials.
Full details →| Prusa Research Core One | Bambu Lab A1 | |
|---|---|---|
| Tier | Prosumer | Prosumer |
| Motion | CoreXY | BedSlinger |
| Build Volume | 250 × 220 × 270 mm | 256 × 256 × 256 mm |
| Max Speed | 600 mm/s | 500 mm/s |
| Multicolor | ❌ No | ✅ 4 slots |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ❌ |
| Upgrade Kit | — | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PC | PLA, PETG, TPU, ABS |
| Released | Jan 14, 2025 | Oct 19, 2023 |
| Cycle length | ~730 days | ~365 days |
| Cycle advice | Caution | Wait |
| Deals advice | Caution | Buy |
| Next model | Core One S (enclosed) (Expected 2027) | A1 2026 Refresh (Expected Q4 2026) |
The Core One matches Bambu CoreXY speed (600 mm/s) while keeping everything open source — firmware, hardware, slicing profiles.
Unlike Bambu's closed ecosystem, every component of the Core One can be modified, repaired, or community-improved.
Existing MMU3 units and the new MMU3 for Core One bring 5-color multicolor printing to the CoreXY platform.
Unlike the A1 Mini's AMS Lite, the A1 Combo includes the full AMS with support for a wider range of filament types.
The largest build volume available in a Bambu bed-slinger — great for terrain, large cosplay props, and functional parts.
Works with Bambu Studio, Bambu Handy app, and the full Bambu filament ecosystem including multi-material profiles.