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: Budget-conscious makers who want a capable CoreXY with Klipper firmware for customization — without Bambu's closed ecosystem or Prusa's premium pricing.
Full details →| Prusa Research Core One | Elegoo Neptune 4 Pro | |
|---|---|---|
| Tier | Prosumer | Prosumer |
| Motion | CoreXY | CoreXY |
| Build Volume | 250 × 220 × 270 mm | 225 × 225 × 265 mm |
| Max Speed | 600 mm/s | 500 mm/s |
| Multicolor | ❌ No | ❌ No |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ❌ |
| Upgrade Kit | — | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PC | PLA, PETG, ABS, ASA, TPU |
| Released | Jan 14, 2025 | Jul 15, 2023 |
| Cycle length | ~730 days | ~450 days |
| Cycle advice | Caution | Wait |
| Deals advice | Caution | Buy |
| Next model | Core One S (enclosed) (Expected 2027) | Neptune 5 Pro (Expected mid-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.
The Neptune 4 Pro ships with Klipper pre-installed — enabling advanced input shaping, pressure advance, and configuration flexibility without modding.
Competitive CoreXY speed at a price significantly below Bambu and Prusa alternatives.
Full automatic bed leveling reduces setup time and calibration friction.