Early in release cycle — no urgency to wait
🔧 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 L owners — letting you reach CORE One L+ 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 | Chamber Heating | Best For |
|---|---|---|---|---|
| CORE One L+ (assembled) | 300×300×330 mm | 500 mm/s | Yes (60°C active) | Ready-to-print large enclosed Prusa — assembled only, no kit option. |
| CORE One L+ INDX 8-Tool (assembled) | 298×275×330 mm | 500 mm/s | Yes (60°C active) | Up to 8 colors or materials with near-zero purge waste — pre-order. |
Key strengths
A large enclosed build volume with genuine active chamber heating — making the CORE One L+ reliable for ABS, ASA, PA, and PC across the full build plate.
All firmware, hardware designs, and slicing profiles are open source. Prusa backs the CORE One L+ with long-term parts availability and community support.
For institutional, government, and production customers, a dedicated Critical Infrastructure Edition is offered — Prusa's commitment to secure supply for professional users.
The Prusa CORE One L+, released August 13, 2026, is the refreshed version of Prusa Research's enclosed large-format CoreXY. It keeps the 300×300×330 mm build volume and active 60°C chamber heating of the original CORE One L and adds GT1.5 belts for smoother surfaces and an integrated nozzle wiper. CORE One L owners can upgrade with a low-cost kit. It is also offered in a 'Critical Infrastructure Edition' for institutional and government customers, and as an assembled CORE One L+ INDX 8-Tool version with Bondtech's INDX toolchanger, which is on pre-order. Fully open source from firmware to hardware designs, it competes directly with the Qidi Plus5 and Creality K2 Pro in the enclosed large-format segment.
The Qidi Plus5 offers a 320×320×300 mm build volume with active 65°C chamber heating at $749 — a strong value proposition. The CORE One L+ has a comparable build volume (300×300×330 mm) with active 60°C heating and adds Prusa's open-source hardware, parts availability, and community. If you value open-source hardware and Prusa's long-term support, the CORE One L+. If you want the best value per dollar for enclosed large-format printing, the Plus5 is hard to beat.
Both are enclosed CoreXY printers. The CORE One+ (Gen 2) has a 250×220×270 mm build volume with chamber temperature control up to 55°C and is available as a kit. The CORE One L+ offers a larger 300×300×330 mm build volume with active 60°C chamber heating and is sold assembled only. If you need the larger build area or print large engineering-filament parts, the CORE One L+. For most work, the CORE One+ is the better value.
Yes — Prusa sells a CORE One L to CORE One L+ upgrade kit with the GT1.5 belts and pulleys and the integrated nozzle wiper. It is a low-cost kit for CORE One L owners only; see Prusa's store for current pricing and lead times.
Yes. The Original Prusa MMU3 is available as an optional add-on kit at prusa3d.com, enabling up to 5-filament multi-material printing. It uses Prusa's retraction technique with a compact wipe tower to minimize filament waste. For near-zero-waste multi-material printing, Prusa also sells the CORE One L+ INDX 8-Tool, an assembled version with Bondtech's INDX toolchanger (298×275×330 mm build volume), plus 4-tool and 8-tool INDX conversion kits for existing CORE One L and L+ printers. Both are on pre-order; the conversion kits ship from January 2027. There is no upgrade kit from the CORE One+ to the CORE One L+ — they are different-sized machines.