Upgrade kit available — Late in cycle — but an upgrade kit is available. Existing owners can upgrade without buying new.
🔧 View upgrade kit →📅 Add launch to calendarPrusa Research does not participate in seasonal sales — the price you see is the price you pay. Why? →
An official upgrade kit is available for CORE One owners — letting you reach CORE One+ specs without buying a whole new printer. This is unique to Prusa and changes the buying calculus significantly.
🔧 View Upgrade Kit →| Model/Config | Build Volume | Speed | Multicolor | Best For |
|---|---|---|---|---|
| CORE One+ (kit) | 250×220×270 mm | 600 mm/s | MMU3 add-on compatible | Hands-on builders who want CoreXY Prusa. |
| CORE One+ (assembled) | 250×220×270 mm | 600 mm/s | MMU3 add-on compatible | Ready-to-print open-source CoreXY. |
Key strengths
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 Prusa CORE One+, released January 16, 2026, is the hardware-refreshed iteration of Prusa's first CoreXY printer. It adds automatic top vent operation, easier flex filament loading, and a redesigned spoolholder over the original CORE One. Existing CORE One owners can upgrade via a low-cost kit. Fully open-source from firmware to hardware designs, it remains Prusa's direct answer to Bambu's P-series.
The defining choice is ecosystem philosophy. Bambu offers a polished closed ecosystem with faster setup, proprietary cloud features, and an aggressive innovation cadence. Prusa offers open-source hardware, longer product lifecycles, community repairability, and no lock-in. If you plan to modify, repair, or build on the printer, Prusa. If you want the fastest out-of-box experience, Bambu.
The CORE One+ is a fully enclosed CoreXY with active chamber temperature control up to 55°C, so it handles ABS, ASA, and PA out of the box. The CORE One L (larger sibling with active 60°C chamber heating) is available for those needing an even larger heated chamber.
Yes — the kit is significantly cheaper than the assembled version and gives you deep familiarity with your printer's components, making maintenance and troubleshooting easier.
Yes — Prusa offers an upgrade kit for CORE One owners to bring their printer to CORE One+ spec. This is consistent with Prusa's tradition of keeping upgrade paths open between generations. See Prusa's upgrade kits page for availability and pricing.