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Prusa CORE One L Critical Infrastructure - FDM 3D Printer

Ref.: PRUSA-CORE.ONE.LCI

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The Prusa CORE One L Critical Infrastructure Edition represents the most advanced evolution of Prusa’s CoreXY platform. Specifically designed for industrial and security-critical environments —such as advanced manufacturing, defense, aerospace, or sensitive infrastructure— this version enhances the capabilities of the original model with a stronger focus on data protection, reliability, and offline operation.

Core One L in an industrial environment

Image 1: The CORE One L Critical Infrastructure operating in an industrial environment. Source: Prusa3D.

Reinforced architecture and industrial design

The CORE One L Critical Infrastructure Edition maintains the 300 × 300 × 330 mm build volume of the standard model but adopts a steel and aluminum exoskeleton with internal reinforcements for greater structural stability. Its actively heated chamber up to 60 °C and AC convection heatbed ensure uniform thermal distribution, eliminating warping even with advanced technical materials such as PA, PC, or ASA.

Core One L precision compared to competitors

Image 2: Exceptional mechanical precision and thermal uniformity define the CORE One L Critical Infrastructure. Source: Prusa3D.

Security and 100% offline operation

The main difference from the CORE One L model lies in its multi-layered security architecture. This version completely removes wireless connectivity and integrated camera, ensuring a fully disconnected (air-gapped) workflow. It is supplied with a certified encrypted USB drive to guarantee that all files and processes remain isolated from external networks.

Encryption system of the Core One L Critical Infrastructure

Image 3: Certified encryption system for completely air-gapped workflows. Source: Prusa3D.

Technical power and professional performance

In terms of performance, it retains the same high-rigidity CoreXY mechanical platform, the Nextruder direct-drive extruder with 10:1 planetary gears, and a 360° cooling system for overhangs up to 75°. It integrates automatic bed leveling via load cell and 32-bit electronics (xBuddy with STM32) combined with Trinamic 2130 drivers, ensuring precision and stability even during continuous 24/7 production.

New heatbed and heated chamber

Image 4: The AC convection heatbed ensures stable and even temperature distribution. Source: Prusa3D.

Ready for continuous production

The printer comes factory-calibrated with two nozzles (a high-flow CHT brass and an abrasive-resistant one, both 0.4 mm). It is optimized for print farms with minimal maintenance and will support the MMU3 multi-material system starting in 2026. Its integrated frame enclosure and removable panels provide easy access and maintenance while maintaining operational safety.

Print farm with multiple Core One L printers

Image 5: The CORE One L Critical Infrastructure is designed for continuous, stable production. Source: Prusa3D.

Material compatibility

Thanks to its heated chamber and advanced thermal management, this edition supports a wide range of materials: PLA, PETG, Flex, PVA, PC, PP, CPE, and PVB. With the optional advanced filtration system, it can also handle ABS, ASA, HIPS, and PA (nylon) with dimensional stability and without warping, achieving layer heights from 0.05 to 0.30 mm.

Video 1: The CORE One L Critical Infrastructure delivers precision and reliability without compromise. Source: Prusa3D.

European manufacturing and industrial certifications

This edition is fully manufactured in the European Union and the United States, with PCBs produced in Prague and complete traceability control. It complies with ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 standards, ensuring quality, sustainability, and occupational safety. These certifications reinforce its suitability for critical facilities requiring verified reliability and documented quality.

Certifications of the Core One L Critical Infrastructure

Image 6: European certifications and quality assurance in manufacturing. Source: Prusa3D.

Open-source software and secure ecosystem

Like all Prusa printers, this edition maintains an open-source software ecosystem with full support for PrusaSlicer, EasyPrint, and Prusa Connect, while being fully operable without network or account requirements. All firmware and software are open source, allowing configuration, slicing, and updates entirely offline to preserve data privacy and workflow integrity.

In summary, the Prusa CORE One L Critical Infrastructure Edition not only doubles the build volume of the original model but also introduces a reinforced security architecture, a more robust mechanical design, and complete offline operation. It is the ideal tool for professionals who require industrial performance and uncompromising data protection.

General information
Manufacturer	Prusa3D
Technology	FDM/FFF

Printer properties
Filament diameter	1.75 mm
Print volume	300 x 300 x 330 mm
Number of extruders	1
Nozzle diameter	0.4 mm
Type of screen	Touch
End of filament sensor	✓
Printing surface	Flexible
Self-leveling	✓
Air filter	✓
Extrusion system	Direct
Screen size	3.5"
Nozzle clogging sensor	✓
Compatible with third-party materials	✓

Software and connectivity
Compatible with third-party software	Sí

Printing properties
Layer height	0.05 mm
Maximum extrusion temperature	290 ºC
Maximum base temperature	120 ºC
Maximum chamber temperature	60 ºC

Dimensions and weight
Dimensions	469 x 521 x 635 mm
Weight	21.9 Kg

Other
HS Code	8477.5900

Todos os recursos relacionados ao uso, manutenção e solução de problemas da impressora podem ser encontrados na página de ajuda da Prusa3D. Algumas dicas:

– Verifique se o volume de impressão (300 × 300 × 330 mm) é adequado para o projeto, sem obstruções, e se a impressora está posicionada em uma base estável.

– Aproveite a câmara fechada com aquecimento ativo até 60 °C para materiais técnicos como ABS, ASA, PC e PA ao usar o sistema de filtragem avançado.

– Certifique-se de que a base aquecida por convecção CA esteja completamente aquecida e que o fluxo de ar interno esteja correto para garantir uma distribuição uniforme do calor e evitar deformações.

– Utilize os perfis oficiais de impressão e a calibração automática da primeira camada para garantir precisão dimensional e qualidade superficial.

– Ative o sensor duplo de filamento e, se imprimir material flexível, ative o modo específico FLEX através do interruptor físico previsto.

– Mantenha a câmara fechada durante a impressão de materiais técnicos para preservar a temperatura ambiente e use o pacote de filtragem avançada para capturar vapores ou emissões.

– Realize manutenção regular das chapas de impressão (PEI magnéticas substituíveis) e verifique se não apresentam desgaste ou danos que possam afetar a adesão inicial do modelo.

– Consulte o manual do fabricante antes de mudar para materiais técnicos ou introduzir novos filamentos, para verificar a compatibilidade do extrusor Nextruder, a temperatura do bico (até 290 °C) e outros parâmetros críticos.

– Configure corretamente o nivelamento da base e monitore a tensão das correias, usando o assistente integrado, se necessário, para minimizar erros mecânicos e manter a precisão.