Prusa CORE One L+ Key Features

• Fully enclosed CoreXY motion system with an actively heated chamber reaching 60°C.
• Large 300 × 300 × 330 mm build volume (29.7 litres).
• All-aluminium AC heatbed with dual-loop convection heating and less than 2°C temperature variance across 99% of the surface.
• Nextruder Direct Drive extruder with integrated Load Cell sensor for automatic first-layer calibration.
• 360° part cooling and tool-free quick-swap nozzle system.
• Robust steel-and-aluminium exoskeleton frame.
• Integrated nozzle wiper for cleaner print starts.
• Supports PLA, PETG, Flex/TPU, PVA, PC, PP, CPE and PVB out of the box.
• Additional support for ABS, ASA, HIPS and PA with the optional Advanced Filtration System.
• Wi-Fi and Ethernet connectivity with Prusa Connect and the Prusa App.
• Removable Wi-Fi module for offline-only operation.
• Open-source firmware and hardware, designed for long-term repairability.
• Upgradeable to the optional Bondtech INDX system for up to eight materials or colours.

What's New in the Prusa CORE One L+?

The CORE One L+ is an updated version of the CORE One L, introducing improvements to print quality, print preparation and everyday usability. The result is a more refined 3D printer that requires less attention while delivering consistently clean results.

Cleaner Print Starts

The integrated nozzle wiper removes residual filament from the nozzle before each print. This helps prevent loose strands and small blobs from affecting the first layer or the finished print surface.

Smoother-Looking Surfaces

New GT1.5 belts help make unwanted repeating surface patterns finer and less noticeable, particularly on the large, smooth surfaces for which the CORE One L+ is designed.

Improved Everyday Usability

Updated firmware simplifies everyday operation and reduces the amount of attention required from the user, complementing the improvements in print quality.

Fully Enclosed CoreXY Architecture

The advanced CoreXY motion system moves the lightweight printhead rather than the heavier print bed. This architecture enables high printing speeds while maintaining accuracy and print quality.

Combined with Input Shaper firmware, which compensates for mechanical vibrations, the CORE One L+ can achieve travel speeds of up to 500 mm/s without compromising the quality of the finished model.

Robust Steel and Aluminium Exoskeleton

The CORE One L+ features a rigid steel-and-aluminium structural frame derived from the CORE One+ design. Aluminium panels help reduce the overall weight while maintaining excellent structural stability.

Despite offering twice the build volume of the CORE One+, the L+ is only slightly larger in terms of its overall footprint, making it suitable for professional workspaces and production environments.

Large 30-Litre Build Volume in a Compact Footprint

The Prusa CORE One L+ offers a generous 300 × 300 × 330 mm build volume, equivalent to 29.7 litres. Compared with the CORE One+, this represents twice the available printing volume, with only around 10% more external dimensions in each axis.

Its large build area allows you to print objects that would otherwise need to be divided into several sections, printed separately and assembled afterwards.

From full-size cosplay helmets and large equipment enclosures to engineering components and batches of smaller parts, the CORE One L+ makes it possible to produce larger models as a single, uninterrupted print.

All-Aluminium Heatbed and Active Heated Chamber

All-Aluminium AC Heatbed

Large 3D prints are particularly sensitive to uneven heat distribution, which can cause warping and lifting at the corners of printed objects.

The CORE One L+ addresses this with a massive, all-aluminium heatbed constructed from a thick block of metal. It delivers less than 2°C temperature variance across 99% of the printing surface, helping maintain consistent temperatures throughout large prints.

The printer automatically detects whether it is connected to a 110 V or 230 V power supply and adjusts the heatbed accordingly.

Active Convection Chamber Heating

Two fans positioned beneath the heatbed draw cooler air from the bottom of the enclosure and circulate it across the heated aluminium surface. Two additional air deflectors distribute the warm air throughout the chamber.

This active convection system allows the chamber to reach temperatures of up to 60°C, creating a more stable printing environment for demanding engineering materials and long printing jobs.

Automatic Chamber Ventilation

The CORE One L+ automatically adjusts its top ventilation depending on the selected material. When printing with lower-temperature materials such as PLA and PETG, the ventilation opens to prevent excessive chamber temperatures. When printing with higher-temperature materials, it closes to retain heat and maintain a stable environment.

A rear exhaust port is also available for connecting the printer to an external HVAC system or optional filtration equipment.

Designed for Advanced 3D Printing Materials

The enclosed and actively heated printing chamber makes the CORE One L+ particularly suitable for printing engineering materials such as ABS, ASA, polycarbonate (PC) and polyamide (PA/Nylon).

Its filament insertion system can be switched to a flexible-filament mode, providing a less restrictive filament path for soft materials such as TPU.

The active chamber ventilation system also helps regulate temperatures when printing lower-temperature materials, allowing the front door to remain closed.

Flexible Filament and Spool Compatibility

The bayonet-style spool holder accommodates different spool sizes and supports direct-feed drybox configurations. Filament spools from different manufacturers can be used without requiring special adapters.

Optional HT Hotend for High-Temperature Materials

The optional HT Hotend upgrade raises the maximum nozzle temperature to 400°C, enabling the use of advanced engineering polymers such as PEKK-CF, PPS-CF, PPSU and PPA-CF.

Print Extreme Overhangs with Less Support Material

The combination of the heated chamber and Prusa's optimised print profiles allows the CORE One L+ to print overhangs of up to 75° without support material in suitable printing conditions.

For models that require additional support, organic tree-like supports help minimise material consumption, reduce post-processing and simplify print removal.

Precision, Accuracy and Repeatability

Prusa evaluates dimensional accuracy using CT scans, comparing the complete printed part against its original digital model rather than relying solely on isolated measurements with calipers.

The CORE One L+ is designed to deliver consistent dimensional accuracy and repeatable results across the entire build volume.

Combined with internally developed, quality-focused print profiles, this approach helps ensure that the finished printed part closely matches the original design.

What Can You Make with the Prusa CORE One L+?

Engineering Parts and Functional Components

Produce replacement parts, functional machinery components and durable mechanical assemblies. With suitable reinforced materials such as PA11-CF and PCCF, the printer is designed for demanding engineering applications, including RC cars, drones and mechanical linkages.

Manufacturing Jigs, Tools and Fixtures

The 30-litre build volume makes it possible to produce large manufacturing jigs, alignment tools and custom workholding fixtures in a single print. This can reduce the need for outsourced CNC manufacturing and help keep production processes running efficiently.

Flexible Models and Functional TPU Parts

Print flexible components such as protective phone cases, camera accessories, vibration dampeners, seals and protective bumpers using suitable flexible materials such as TPU.

Prototypes, Props and Cosplay

From architectural models and detailed prototypes to large props and cosplay components, the CORE One L+ provides the build volume needed to create larger objects in a single print.

Built for Long Production Runs

The CORE One L+ is designed to handle long and demanding printing jobs. Its large build area allows multiple components to be printed in one batch, while consistent heat distribution helps maintain reliable results throughout production.

Prusa Connect and the Prusa App provide remote monitoring, print queue management and access to the optional camera feed from a smartphone or web browser.

Multiple printers can also be managed remotely, making the CORE One L+ suitable for workshops and production environments operating a fleet of 3D printers.

As with any 3D printer, appropriate supervision and operational safety practices remain important during extended printing jobs.

100% Offline Operation and Data Privacy

The Prusa CORE One L+ does not require an internet connection to operate. Printing, printer configuration and firmware updates can be performed offline without sacrificing the printer's core functionality.

For environments with stricter security requirements, the detachable Wi-Fi module can be physically removed. This makes the printer suitable for organisations that prefer to operate their equipment without wireless connectivity or cloud services.

Critical Infrastructure Edition

A separate Critical Infrastructure Edition is also available. It features a custom mainboard without a Wi-Fi slot or related circuitry, an encrypted certified USB drive and no included camera.

This version is designed for facilities that require additional hardware-level restrictions on network connectivity and data handling.

Software, Slicing and 3D Printing Workflow

PrusaSlicer

The CORE One L+ works with PrusaSlicer, Prusa's free and open-source slicing software. It includes more than 200 factory-tuned material profiles and advanced tools such as organic supports, variable layer height and manual seam positioning.

The printer is compatible with standard 1.75 mm filaments from different manufacturers, giving users the flexibility to work with Prusament or third-party filament brands and create custom material profiles.

EasyPrint

The EasyPrint web application provides a simple way to browse models on Printables.com and send them to the printer directly from a smartphone, tablet or web browser without installing additional software.

Prusa Connect and Prusa App

Prusa Connect offers free remote monitoring and multi-printer management through a web browser. The Prusa App extends printer control and Printables integration to iOS and Android devices.

Camera, Filtration and Optional Accessories

1080p Camera with Night Vision

A detachable 1080p camera with night vision is included in the box. It can be used to monitor prints remotely through Prusa Connect and the Prusa App or to create timelapse videos. It can also be left disconnected when maximum privacy is preferred.

Optional Advanced Filtration System

The optional Advanced Filtration System combines HEPA and activated carbon filters to help filter particles and fumes generated when printing certain materials.

Filtration or External HVAC Connection

The CORE One L+ offers flexibility in workshop ventilation. Users can choose the optional integrated filtration system or connect the rear exhaust port to an existing HVAC installation.

Optional Prusa USS Drybox

The optional Prusa USS Drybox mounts directly onto the bayonet spool-holder connection. It allows moisture-sensitive filament to be dried, stored and printed from a sealed container, reducing exposure to ambient humidity.

Optional HT Hotend Upgrade

The HT Hotend upgrade increases the maximum nozzle temperature to 400°C, enabling printing with advanced high-temperature engineering materials.

Bondtech INDX Multi-Material Upgrade

The CORE One L+ is compatible with the optional Bondtech INDX toolchanging system, which supports up to eight different materials or colours in a single print. The upgrade can be installed later through a separate kit, without replacing the printer.

Designed to Last – Repairable and Upgradeable

The CORE One L+ is designed with repairability in mind. Its components are mechanically assembled rather than permanently glued or welded, allowing the printer to be disassembled using standard tools.

Prusa maintains spare-parts availability for at least five years after a product is discontinued and continues to provide firmware updates for years after release.

This approach makes the CORE One L+ a long-term investment for professional workshops and users who value serviceability, component replacement and hardware upgrades.

Open-Source Hardware and Firmware

Prusa publishes the printer's CAD files and firmware source code, allowing users to inspect, modify and customise the hardware and software.

The open-source approach provides greater flexibility and avoids mandatory cloud connectivity or locked bootloaders for normal setup and operation.

Users can also create their own accessories, including custom spool holders, nozzle holders, print-sheet holders and filtration solutions.

Who Is the Prusa CORE One L+ For?

The Prusa CORE One L+ is designed for professional users who need a reliable, precise and versatile large-format 3D printer.

• Engineers and product designers: for large prototypes, functional components and engineering parts.
• Manufacturers and workshops: for production fixtures, tooling and repeatable small-batch manufacturing.
• Cosplay and prop makers: for large helmets, props and detailed models printed in fewer pieces.
• Research and development teams: for advanced materials and demanding prototyping workflows.
• 3D printing farms: for remote monitoring and management of multiple printers.

Designed and Manufactured in the EU

The CORE One L+ is designed and manufactured at Prusa Research facilities in Prague, Czech Republic. Prusa also operates a second manufacturing facility in Delaware, USA.

In-house development, electronics production and assembly give Prusa direct control over manufacturing processes and product quality.

Low Running Costs and No Mandatory Subscriptions

The CORE One L+ is designed to keep ongoing maintenance costs manageable. Nozzles can last hundreds of printing hours, depending on the materials used, and can be replaced in just a few minutes.

The double-sided print sheet can be flipped when one surface becomes worn, extending its useful life.

There are no mandatory subscriptions or proprietary filament cartridges. PrusaSlicer, EasyPrint, Prusa Connect, the Prusa App and firmware updates remain free to use.

Upgrade to Eight Materials with Bondtech INDX

The CORE One L+ is ready for the optional Bondtech INDX multi-material toolchanging system, developed in collaboration with Prusa.

INDX allows the printer to work with up to eight different materials or colours in a single print, automatically switching between toolheads with minimal material waste.

PrusaSlicer supports the workflow, allowing users to transform compatible single-colour models into multi-colour prints without additional 3D modelling.

The printer is supplied in its standard single-tool configuration. The INDX system is available separately as a future upgrade.

What's Included in the Box?

• Prusa CORE One L+ fully assembled 3D printer.
• Printed 3D Printing Handbook.
• 1 kg Prusament PLA filament.
• Satin powder-coated print sheet.
• 0.4 mm Prusa hardened nozzle (nickel-plated).
• 0.4 mm High-Flow nozzle (pre-installed).
• USB drive with sample prints.
• Alcohol-saturated cleaning wipes.
• 1080p camera with night vision.
• Digital access to a Prusa Academy course.
• Haribo gummy bears.
• Additional tools and spare parts.

The fully assembled printer is ready to be lifted out of the box and set up, with no assembly required.

Learning Resources and Technical Support

3D Printing Handbook

A printed 3D Printing Handbook is included with the printer. It covers initial setup, everyday operation, advanced workflows and troubleshooting. A free PDF version is also available.

Prusa Academy

Free access to a comprehensive Prusa Academy course covering the CORE One L+, from unpacking and setup to slicing and printing. It is also useful for onboarding teams and educational environments.

Basics of 3D Printing

Prusa also provides a free introductory e-book covering the history of 3D printing, manufacturing technologies and commonly used materials.