Prusa Research announced the CORE One at Formnext in Frankfurt on November 19, 2024, introducing a compact, enclosed CoreXY 3D printer as the foundation of a new product line. Its launch announcement described active chamber temperature control up to 55 °C and compatibility with common materials including PLA and PETG. Those are Prusa’s specifications and design claims, not independent comparative test results. Prusa announced a refreshed generation, the CORE One+ (Gen 2), on August 13, 2026.
What Prusa announced in 2024
The CORE One was presented as an alternative to Prusa’s open-frame MK4S, not as a replacement for every use. The machine uses CoreXY motion and a fully enclosed chamber; Prusa said it was more compact externally than the MK4S while offering a larger build volume. The announcement also highlighted offline operation. No independent controlled comparison accompanied those comparative claims.
Prusa said the chamber could be actively controlled up to 55 °C while still supporting materials such as PLA and PETG. CEO Josef Prusa framed that as a deliberate effort to avoid the door-open compromise he said some enclosed-printer makers recommend for those materials. That statement describes Prusa’s design goal; it does not establish how every printer or material behaves in practice.
Josef Prusa also described the CORE One as robust, repairable, and designed for disassembly with a screwdriver, with no glued or welded construction. These are manufacturer statements about the product philosophy, not independent durability findings.
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- [PRO-GRADE SPEED & QUALITY] Elevate your workshop with this high-speed CoreXY professional 3d printer. The all-steel exoskeleton frame ensures maximum stability for lightning-fast printing without sacrificing detail. Get consistent, industrial results for every project.
- [SMART PLUS UPDATES] The CORE One+ features a redesigned easy-flex loading system and bayonet spool holder. Enjoy a smoother, autonomous experience with the latest firmware updates and access to over one million models on Printables.com. Print your first model in minutes thanks to intuitive software and one-click printing.
- [ADVANCED THERMAL CONTROL] Perfect 3d printer for hobby and pros. The enclosed chamber reaches 55°C with active control. The automatic top vent regulates airflow for Carbon Fiber, Nylon, ASA, and PC-Blend while keeping PLA and PETG prints crisp and beautiful.
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CORE One launch price and shipping date
Prusa’s November 19, 2024 announcement listed an introductory U.S. price of $1,199 excluding VAT and a European price of €1,349 including VAT. It planned first shipments for January 2025. These are historical launch details, not current quotes or delivery estimates. For present pricing, stock, and regional availability, check Prusa’s CORE One product category; its listings can change.
What changed with CORE One+ (Gen 2)
On August 13, 2026, Prusa announced the refreshed CORE One+ (Gen 2). The company highlighted several hardware changes and said the refreshed lineup was available for sale immediately at prices unchanged from the preceding machines. That was the status on the announcement date, not a guarantee of current availability.
Rank #2
- The CORE One is a 3D printing workhorse engineered in the proven Prusa tradition. Designed with a "made to last" philosophy and made from premium materials, the CORE One offers exceptional reliability with minimal maintenance. The enclosed chamber, capable of reaching up to 55 °C, features active temperature control for high-quality printing across a wide range of materials from PLA and PETG (even with the door closed) to more demanding materials like ASA, PC, or Nylon.
- Whether you're new to 3D printing or a seasoned expert, Prusa CORE One ticks all the boxes for a reliable all-around machine. Featuring an enclosed chamber and CoreXY design, it combines high-speed printing and maximum print quality with a large 250×220×270mm print area. And there are plenty of clever design choices, e.g., an all-steel exoskeleton frame for maximum firmness and robustness. You’ll be ready to print your first model in minutes thanks to intuitive software and one-click printing.
- The printer includes a free 1 kg spool of Prusament PLA Prusa Galaxy Black; Prusa Research offers lifetime technical assistance and 24 hours professional customer service.
| CORE One+ change | What Prusa said |
|---|---|
| GT1.5 belts | Updated belts, also used on other refreshed models. |
| Nozzle wiper | A new wiper, described as shared with other refreshed models. |
| Heatbed mounting | Changed to speed warmup and improve flatness; these benefits are Prusa’s claims. |
| Top panel and vent | A snap-on removable top panel and a more robust automatic vent mechanism. |
Prusa said kits, upgrades, and individual parts would roll out over the following weeks in August and September 2026. Check the current listing before assuming a particular kit or component is in stock or compatible with a specific machine.
CORE One or MK4S: which fits your needs?
There is no universal winner in Prusa’s own framing: the company said the open-frame MK4S and enclosed CORE One could coexist. The practical choice depends on what you print, how much room you need, whether enclosure and active chamber control matter, and whether you already own an MK4S.
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- [HIGH-SPEED COREXY PERFORMANCE] Advanced CoreXY motion system delivers fast, precise, and reliable printing with excellent surface quality and dimensional accuracy for both prototyping and production workflows.
- [FULLY ENCLOSED ACTIVE-HEATED CHAMBER] Enclosed design with active temperature management supports stable printing across a wide range of materials including PLA, PETG, ASA, PC, and Nylon while helping reduce warping and improve layer adhesion.
- [AUTOMATIC VENTILATION & SMART MATERIAL HANDLING] Intelligent top vent automatically adjusts airflow for low- and high-temperature materials, while the redesigned Easy Flex Loading system simplifies flexible filament insertion and everyday operation.
- [PROFESSIONAL-GRADE RELIABILITY] Built with a rigid all-steel exoskeleton frame engineered for long-term durability, low maintenance, and dependable day-to-day printing in homes, workshops, studios, and business environments.
- [READY-TO-PRINT EXPERIENCE] Fully assembled and tested with intuitive software, automatic calibration, and one-click printing so you can begin printing within minutes of setup.
| Decision factor | CORE One / CORE One+ | MK4S |
|---|---|---|
| Enclosure and chamber | Fully enclosed CoreXY design with active chamber temperature control up to 55 °C, according to Prusa’s 2024 launch announcement. | Open-frame option in Prusa’s launch comparison; no active enclosed chamber described there. |
| Common materials | Prusa said PLA and PETG remain compatible despite the enclosure. | Prusa described the MK4S as suitable for commonly used materials including PLA and PETG. |
| Size and build volume | Prusa said it has a smaller exterior and larger build volume than the MK4S; no independent comparison was provided. | Used as the comparison point in Prusa’s launch announcement. |
| Current ownership | Prusa announced an MK4S-to-CORE One conversion kit; verify current kit contents, compatibility, price, and stock. | Can remain an open-frame option if it already meets the owner’s material and part-size needs. |
For an MK4S owner, compare the current conversion-kit cost and contents with the price and features of a complete CORE One+ before deciding. For a new buyer, consider assembly preference and current price and support along with enclosure and part-size requirements. The supplied product announcements do not establish independent speed, reliability, noise, or print-quality results for either model.
Can an MK4S be converted to a CORE One?
Prusa announced a conversion kit intended to give MK4S owners a path to CORE One rather than requiring purchase of a whole new printer. The announcement does not establish the kit’s current availability, price, exact contents, or compatibility with every configuration. Confirm those details with Prusa before ordering, particularly if you are considering whether the conversion is better value than a complete refreshed printer.
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- [HIGH-SPEED FDM PRINTING PERFORMANCE] Delivers fast and reliable desktop 3D printing with excellent surface quality and dimensional accuracy. Print Size 9.84 x 8.3 x 8.6 in.
- [INPUT SHAPING FOR CLEAN RESULTS] Advanced motion compensation reduces ringing and vibrations for sharper edges at higher speeds.
- [PROFESSIONAL-GRADE RELIABILITY] Designed for consistent day-to-day operation in workshops, studios, and production environments.
- [OPEN-SOURCE & UPGRADEABLE SYSTEM] Built on Prusa’s open ecosystem with long-term firmware updates and hardware upgrade paths.
- [IDEAL FOR PRODUCTION & PROTOTYPING] Suitable for both functional parts and detailed prototypes requiring dependable output.
INDX multi-tool system and open design files
INDX multi-tool upgrade
Prusa and Bondtech announced the INDX multi-tool system for CORE One in November 2025, describing capability for up to eight materials. Their announcement described an initial Founders Edition run of 1,000 units and planned shipping for Q1 2026. Those rollout details are historical; they do not confirm present availability or independently tested print results.
CORE One frame CAD files
In December 2025, Prusa announced that CORE One and CORE One L frame CAD files were released under its Open Community License (OCL). The company said makers may inspect, modify, and share derivatives subject to that license. Read the OCL terms before reusing or distributing files; the announcement alone does not make the hardware unrestricted open-source.
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- 3-Second Quick-Swap Nozzle & Auto Leveling — Features a tool-free, quick-release nozzle mechanism for effortless 3-second replacements across multiple sizes (0.25/0.4/0.6/0.8mm). One-click full auto-leveling ensures precise bed calibration and a perfect first layer every time.
- Dual Filtration System & Quiet Enclosure — Built with an integrated dual filtration system and a fully enclosed chamber to ensure a clean printing environment and thermal stability. Powered by low-noise motion control, it operates quietly under 50dB for seamless home, office, or classroom use.
- 280°C High-Temp Extruder & Broad Material Compatibility — With a 280°C max nozzle temperature and a 110°C heated bed, it reliably prints engineering materials like ABS, ASA, and PETG-CF, as well as standard PLA and PETG.
- Smart Camera & Mobile Control — Features a built-in camera for real-time monitoring and time-lapse video creation. Monitor progress, adjust settings, and receive instant status alerts via Flash Studio. Integrated with filament detection, power loss recovery, and a 4.3-inch touchscreen for effortless operation.
Sources
- Prusa Research: Meet the Original Prusa CORE One, November 19, 2024
- Prusa Research: Introducing the Original Prusa CORE One+ (Gen 2), August 13, 2026
- Prusa CORE One product category
- Prusa Research: CORE One and CORE One L frame CAD files under the Open Community License, December 2025
- Prusa Research and Bondtech: INDX multi-tool system announcement, November 2025
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