Early in release cycle — no urgency to wait
🔧 Upgrade kit available — from CORE One+, MK4S
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 →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 →| Prusa Research CORE One+ | Qidi Tech Max4 | |
|---|---|---|
| Pricing | ||
| Starting Price | $1,149 | ★ $1,049 |
| Print Specs | ||
| Tier | Prosumer | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | 250 × 220 × 270 mm | ★ 390 × 390 × 340 mm |
| Max Speed | 600 mm/s | ★ 800 mm/s |
| Multicolor | ★ ✅ 8 slots | ✅ 4 slots |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ★ ✅ | ❌ |
| Upgrade Kit | 🔧 From CORE One+, MK4S | — |
| Buy Timing | ||
| Released | Aug 13, 2026 | Dec 1, 2025 |
| Cycle length | ~209 days | — |
| Cycle advice | Buy | Buy |
| Deals advice | Caution | Buy |
| Next model | — | — |
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.
The CORE One+ (Gen 2) can be ordered with Prusa's INDX toolchanger in 4- or 8-tool versions, shipping from 15 October 2026. Each material gets its own nozzle, with about 12 seconds per material change and almost no purge waste. The MMU3 remains compatible as a 5-color add-on.
The Max4 offers the largest build volume in Qidi's lineup — enabling large functional parts, architectural models, and production batch runs that exceed Plus5 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.