The Prusa CORE One L is a closed CoreXY 3D printer (FFF/FDM) designed for reliable printing of large parts and series without compromising on geometry. With a print volume of 300 × 300 × 330 mm (≈ 30 L), an actively heated chamber up to 60°C, and a new AC (mains-powered) convection heating plate, the model is geared towards working with more demanding materials and minimizing warping when printing “edge to edge” on the bed.

• Print volume: 300 × 300 × 330 mm (≈ 30 L)
• Layer height: 0.05–0.30 mm
• Temperatures: nozzle up to 290°C, bed up to 120°C, chamber up to 60°C
• Extruder: Nextruder, Direct Drive, 360° cooling; 0.4 mm nozzles (high-flow + abrasion-resistant included)
• Automation: load cell for first layer, mesh bed leveling, Input Shaper, Phase Stepping
• Connectivity and printing: USB/LAN and remote control via Prusa Connect/Prusa App; NFC receiver
• Camera: 1080p with night vision (Buddy3D), included in the box

If you are looking for an “all-purpose” printer – from functional prototypes to small-batch production – CORE One L is a strong choice for workshops, studios, teaching laboratories, and companies that want predictable results and a transparent ecosystem.

Who is Prusa CORE One L for?

This 3D printer is aimed at users who:

• print large details in one piece (instead of cutting the model into pieces and gluing them together);
• work with materials that require a controlled environment (chamber up to 60°C) for better adhesion and less warping;
• appreciate minimal setup – the idea is “Unpack & Print,” with a quick start after unpacking;
• want offline mode and control over their data (no mandatory accounts or cloud storage).

Technology and quality

The CORE One L uses CoreXY kinematics and a closed enclosure, which helps with stability at higher speeds and a more predictable thermal environment. Several elements are key to the printing process:

• AC convection heating plate made of solid aluminum, with active air circulation for more even temperature in the chamber and faster heating up to 60°C.
• Nextruder (Direct Drive) with 360° cooling, designed for clean overhangs and stable details; Prusa indicates the possibility of high-quality overhangs up to 75° with the correct profile.
• 0.9° X/Y stepper motors and optimizations against VFAs (vertical fine artifacts) – important for details with visible walls (product housings, panels, front parts).
• Automatic first layer via load cell and automatic mesh bed leveling (within the print area) – less manual calibration and fewer “surprises” at startup.

The layer height range of 0.05–0.30 mm covers both detailed printing (prototypes, visual elements) and faster functional parts.

Productivity and workflows

Instead of chasing “speed alone,” the approach here is speed + repeatability. The printer comes with Input Shaper and Phase Stepping, and the high-flow nozzle (CHT, 0.4 mm) is geared toward stable flow with standard and engineering materials. The kit includes two nozzles: high-flow (installed) and abrasion-resistant 0.4 mm for filled/abrasive filaments.

The following are available for monitoring and management:

• Prusa Connect and Prusa App (iOS/Android) for remote monitoring and control;
• 1080p Buddy3D camera with night vision (included; installation is optional);
• firmware updates via USB or the Prusa ecosystem.

If you work in an environment with strict security requirements, CORE One L can be used completely offline, and the Wi-Fi module can be disabled/removed according to the manufacturer’s instructions.

Compatibility and software

The main recommended workflow is through PrusaSlicer – free, open-source, and cross-platform (Windows/macOS/Linux).

According to official data, PrusaSlicer supports importing STL, STEP, 3MF, OBJ, and AMF files, which facilitates integration with CAD/3D software (export to STEP/STL or direct import for suitable projects).

Connectivity combines wired LAN and Wi-Fi/PrusaLink capabilities in the new generations of printers in the series, as described in the Prusa documentation for CORE One/+/L.

For color/multi-material printing: CORE One L is compatible with MMU3, with Prusa indicating availability for CORE One L in early 2026 (including a mention of “Jan 2026” in the specifications).

Design, dimensions, and interfaces

The construction is designed for long-term use: steel frame (exoskeleton) and panels designed for stability and easy maintenance.

• Dimensions: 469 × 521 × 635 mm (W×D×H) and weight: 21.9 kg.
• Footprint (installation area): 456 × 488 mm (specified in comparison between CORE One L and CORE One).
• Screen: 3.5″ color graphic display (65k) with touch control.
• Connectivity: Ethernet, NFC receiver; printing via USB/LAN and remote control.
• Sensors: 2× filament sensor, load cell, door sensor, fan monitoring, 5× precision thermistors (Semitec).

Professional scenarios

Here are realistic examples where CORE One L provides measurable benefits:

• Engineering prototyping: printing large housings/functional parts in one piece (fewer assemblies, better strength and fit accuracy).
• Templates, mounting fixtures, and clamps: larger plate = more details per cycle for night series (less downtime for the operator).
• Architectural models and exhibition models: cleaner walls (VFA optimizations) and detail control through a 0.05–0.30 mm layer.
• Cosplay/prop parts: helmets and large elements without cutting models, with predictable adhesion at the edges.
• Small series for end products: stable profiles, monitoring camera and remote notifications (optional), suitable for small print farms.

Restrictions, best practices, and technical specifications

No FFF/FDM system is “magic.” For best results, keep in mind:

• Materials with emissions (e.g., ABS/ASA/HIPS/PA): Prusa specifies the need for an optional Advanced Filtration System for these materials, which is particularly important when working in enclosed spaces and shared areas.
• Dry filament = fewer problems: with PA/PC/filled materials, moisture leads to “cracking,” poor surface finish, and lower strength (use drying/box).
• PP and large flat parts: PP is a difficult material to adhere to – plan for a suitable printing surface, cleanliness, and temperature, and test small samples.
• Abrasive filaments (CF/GF/metal fillers): use the included abrasion-resistant nozzle and monitor wear.
• TPU/Flex: use the designated “Flex mode”/easier feeding and keep the track as straight as possible; do not over-tighten the clamping mechanisms.
• Safety: activate the door sensor and follow the warnings – the manufacturer expressly warns that disabling it may result in injury or damage.

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The Prusa Pro HT90 is an industrial 3D printer (FFF/FDM) with delta kinematics and a cylindrical print volume of Ø300 × 400 mm (28 L). It is designed for teams that want more predictable 3D printing of engineering plastics – from ABS/ASA and PA to high-end polymers such as PEEK/PEKK and PEI (Ultem) – without sacrificing speed, repeatability, and control over the working environment. Its two strengths are the actively heated work chamber up to 90°C and the interchangeable print heads (High-Flow up to 300°C and High-Temp up to 500°C) included in the package.

• Printing volume: Ø300 × 400 mm (cylinder), 28 L
• Temperatures: nozzle 300°C (High-Flow) / 500°C (High-Temp), plate up to 155°C, chamber up to 90°C
• Speed/dynamics: up to 600 mm/s movement, up to 250 mm/s printing speed, acceleration up to 20,000 mm/s²
• Filtration: HEPA + carbon filter in closed recirculation circuit
• Control and connectivity: 7″ touch display, Ethernet (RJ45), detachable Wi-Fi module, full offline mode

Key advantages for industrial 3D printing

The HT90 is designed for “first-time” results with difficult materials and complex geometries. The practical advantages for professional work are:

• Heated working chamber up to 90°C for better adhesion between layers and less deformation with ABS/ASA/PA.
• Interchangeable heads – switch from rapid prototyping (High-Flow, 0.4 mm Revo) to high-temperature materials (High-Temp, 0.6 mm Revo) without complex hardware adjustments.
• Closed filtration (HEPA + carbon) that maintains a cleaner environment in the chamber and supports work in controlled rooms (always in accordance with internal rules and OHS requirements).
• Offline mode for organizations with strict security policies – the printer is designed to work without the Internet, and the Wi-Fi module can be detached if necessary.

Technology and quality: delta kinematics, temperature and airflow control

Unlike classic Cartesian and CoreXY designs, delta kinematics move a lightweight head with three coordinated arms, while the detail remains stationary on the plate. This helps to achieve smoother surfaces and stable dynamics even with larger parts, especially when combined with Input Shaper (active vibration suppression).

Air control is also key: the HT90 uses a servo-controlled high-speed valve that redirects the air flow within milliseconds, plus a high-pressure turbine to cool the chamber after a cycle. This allows for cleaner overhangs with fewer supports, without the rest of the part being “overcooled.” Additionally, there is automatic control of the incoming air for materials such as PLA/PETG, so that they can also be used with the chamber closed, depending on the profile.

Производителност и работни процеси

The HT90 is designed for two typical operating modes:

• Ultra-fast prototyping with High-Flow head – optimized for materials up to 300°C and high performance (specifications indicate up to 40 mm³/s maximum flow rate with ABS using a 0.8 mm nozzle).
• High-temperature 3D printing with a High-Temp head – up to 500°C for PEI/PEEK/PEKK and other materials (most suitable for small to medium-sized parts where thermal control is easier).

According to the manufacturer, with the right settings and material, the HT90 can deposit up to 1 kg of PETG or ABS in ~8 hours, which is useful for quick iterations and short runs. Control is via a large 7″ touch display, and automatic calibration relies on Loadcell for the first layer – the system measures the distance in the grid and calculates corrections without manual adjustments.

Compatibility and ecosystem

The software center is PrusaSlicer (professionally oriented, with ready-made profiles). For modeling and preparation, you can work with your preferred CAD/3D software and import standard formats such as 3MF, STL, STEP, OBJ, and AMF into PrusaSlicer, then export the G-code for printing.

There are two main scenarios for networking:

• PrusaLink – local control within your LAN environment.
• Prusa Connect – cloud management and monitoring, when your policies allow it.

The HT90 supports Ethernet (RJ45) and a detachable Wi-Fi module, as well as full offline use (including firmware updates via USB). This is a big plus for manufacturing and engineering organizations where data and access are strictly controlled.

Design and ergonomics

The printer has a compact base relative to its volume and a vertically sliding door that saves space at the front – important when positioning it against a wall or in a laboratory row. The dimensions are 530 × 530 × 1050 mm (without the roll holder), and the height reaches 1470 mm when the door is open. The weight is 43.5 kg without packaging (50 kg with packaging), which is realistic for an industrial-grade system and requires planning for transport and installation.

Operating conditions: the device is intended for indoor use, at 20–32°C and up to 85% relative humidity (non-condensing). For the EU 230V version, the power supply is in the range 220–240 VAC, 50–60 Hz (according to the documentation, depending on the version).

What’s included in the basic package: the printer itself, power cable, textured powder-coated printing sheet, Wi-Fi adapter, USB flash drive with sample files, Prusament ASA Jet Black 850 g, alcohol wipes, cutters, High-Flow head, High-Temp head, high-temperature nozzle replacement tool, PTFE lubricant, spare parts, roll holder, and brass nozzle brush.

Professional scenarios

• Large ABS/ASA bodies and caps: the heated chamber up to 90°C helps maintain stable geometry and reduces the risk of warping in larger plates.
• Clamps, conductors, and jigs for manufacturing: rapid iteration with High-Flow head and option for more durable materials (PC, PA, composites such as PCCF) when rigidity is required.
• Proof-of-concept details with high durability: PA/PC/PACF/PCCF for functional prototypes that must withstand stress and temperature.
• High-temperature components (small/medium): PEI/PEEK/PEKK/PPSU for parts in engineering applications where standard materials are thermally or chemically degraded.
• Flexible elements: TPU/TPE for seals, pads, protectors, and grips, with the extruder optimized for FLEX.
• Secure environments (offline): laboratories and enterprises that require local control and restriction of external connections.

Restrictions and best practices

• Moisture is the number one enemy of engineering materials: many high-end filaments are hygroscopic. Plan for drying and working from a drybox/dryer to reduce stringing and microdefects.
• PEEK/PEI are sensitive to thermal conditions: a 90°C chamber is very useful, but larger parts may require additional testing, slower speeds, and careful orientation.
• Printing surface and adhesion: clean the sheet (alcohol wipes are included in the kit), use appropriate temperatures and “brim” for details with a large contact area.
• Filtration and safety: despite HEPA+carbon, follow your internal OHS rules, avoid touching hot areas, and ensure a controlled environment for materials with emissions.
• Maintenance: Follow the schedule for cleaning/replacing filters and lubricating (linear guides, etc.) to maintain dynamics and repeatability over time.

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Description

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. And with nearly one million 3D models at Printables.com, you will always have something awesome to print!
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.

Plug and Print!

10 minutes from unpacking to first print

Unpack the printer, perform a one-time calibration, and you’re ready to go. Equipped with advanced sensors for hassle-free printing, the CORE One is a true “start and forget” machine. Simply start your print and let the printer handle the rest, from fully automatic first-layer calibration to pausing the print and sending a notification if the filament runs out.

Flawless Precision

Outstanding print quality thanks to the Nextruder

You can be sure that with our internally developed, quality-focused print profiles, your models will turn out exactly the way they were designed, with perfect dimensional accuracy. CORE One takes advantage of the upgraded Nextruder with 360° cooling that enables flawless printing of 75° overhangs, saving both time and material.

Maximum Speed without a catch

The CORE One is fast with every filament, not just specialized ones

Don’t limit your projects with a small selection of specialized “high-speed” filaments. Use any PLA, PETG or any of the advanced materials. While the CORE One is our fastest printer yet thanks to its robust CoreXY kinematics, high-flow nozzle, Input Shaper and factory-tuned print profiles for 200+ filaments, it never sacrifices quality for quicker print times.

Compact Footprint, Large Volume

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