Prusa CORE One+ 3D Printer

Prusa CORE One+ – closed CoreXY 3D printer for reliable 3D printing

Key benefits

• build volume: 250×220×270 mm.
• Layer height: 0.05–0.30 mm.
• Nozzle: High-flow Prusa Nozzle brass CHT – 0.4 mm + Quick-Swap replacement system.
• Maximum temperatures: nozzle 290 °C, bed 120 °C, chamber 55 °C.
• Automated training: Loadcell for fully automatic calibration of the first layer + 2× filament sensor.
• Connectivity and Management: Ethernet + Wi-Fi via module (included), work via USB, Prusa Connect and Prusa App.

Who is the Prusa CORE One+ for and what is this 3D printer suitable for?

The Prusa CORE One+ is a sealed CoreXY 3D printer designed as a platform for predictable 3D printing in environments where a stable process is more important than "tuning to infinity". The enclosure (up to 55 °C) helps for more controlled conditions when working with more demanding polymers, and the Prusa ecosystem (slicer, remote control and mobile app) is focused on repeatability – from single prototypes to small production runs.

The machine is suitable for engineers, product designers, training workshops and production teams who want to minimize manual corrections (first layer, filament feeding, monitoring) and standardize the result between different operators. According to the manufacturer, the model was designed and manufactured in the EU.

Technology and detail quality: CoreXY, Nextruder and first layer control

CoreXY kinematics is a practical choice when the goal is smooth X/Y movement with less moving mass and better control of accelerations (without having to chase specific numerical speeds). In CORE One+ this is combined with Nextruder (Direct Drive), planetary mechanism with 10:1 gear ratio and 360° cooling of the workpiece. For everyday work, this means more stable feed with frequent retractions, more predictable behavior with small parts and fewer "surprises" with long prints.

A key element to repeatability is Loadcell the sensor - the automatic calibration of the first layer is performed without "paper tests" and manual readjustment every time the plate is removed/replaced. Add and 2× filament sensor plus fan monitoring and a door sensor - these are the typical "safety" mechanisms that reduce the risk of a failed process due to a minor oversight.

The standard configuration is with a high-flow nozzle 0.4 mm (Prusa Nozzle brass CHT) and layer height range 0.05–0.30 mm. For applications that require higher extrusion temperatures, the manufacturer offers an optional HT Hotend Upgrade (up to 400 °C) - important clarification: this is an upgrade, not the standard temperature limit of the machine.

Productivity and Workflow: PrusaSlicer, Prusa Connect and Offline Mode

CORE One+ is designed as an "under one roof" workflow: prepare file, send to printer and manage jobs. It is used for preparation PrusaSlicer, and for remote control – Prusa Connect and Prusa App. Firmware updates are possible via USB stick, Prusa Connect and the mobile app.

About the files: The Prusa ecosystem works with G-code as the final output for the printer, and for input to the PrusaSlicer, formats are described as 3MF (preferred), STL, STEP, OBJ and AMF (according to the Prusa documentation). The practical plus of 3MF is that it can store not only geometry, but also settings/design – useful for batch jobs and handover between teams.

A quick "how-to" for a stable process:

1. Import a model (eg 3MF/STL/STEP) into PrusaSlicer and select a material profile.
2. Export the G-code and send it to the CORE One+ via USB or network (Prusa Connect / LAN / Internet via Prusa Connect or the mobile app).
3. Clean the plate and run the task; the printer performs an automatic calibration of the first layer via loadcell.
4. Monitor status locally or remotely; in the event of filament exhaustion/problem, the sensors assist in timely response.

An important feature for environments with high security requirements: the manufacturer describes Offline Mode, where the device can be configured and used offline (including flashing and firmware installation) and the Wi-Fi module can be physically turned off. This is relevant for R&D, educational laboratories and industrial networks with strict policies.

Compatibility and ecosystem: materials, upgrades and accessories

CORE One+ works with filament 1.75 mm and according to the manufacturer's data supports materials: PLA, PETG, Flex, PVA, PC, PP, CPE, PVB, and when using the optional Advanced Filtration System – ABS, ASA, HIPS, PA. This list is a good starting point, but the quality of the result depends on the profile and proper storage/drying of the material (especially with PA/PVA).

For multi-material: CORE One+ is compatible with MMU3 (optional) described as an upgrade to work with up to 5 filaments in a single-nozzle configuration. Separately, the model is positioned as "ready" for the future INDX upgrade (optional solution to combine up to 8 materials/colours according to the manufacturer's description) - when it is available as a product.

Accessories and extensions described by the manufacturer:

• Optional internal surveillance camera (in the printer camera).
• Optional HEPA filtration and optional Advanced Filtration System (for materials with elevated particulates/fumes, eg ASA).
• Compatibility with GPIO board and optional accelerometer for calibration of Input Shaper profiles in modified configurations.
• Optional HT Hotend Upgrade (up to 400 °C) for high-temperature polymers - if such a class of materials is needed.

Design and ergonomics: enclosure, interface and connectivity

On the CORE One+, the build is described as all-steel exoskeleton, and the enclosure is an integral part of the machine. From a practical point of view, this is important for durability in daily operation (door open/close, servicing, moving) without relying on additional "boxes" around the printer.

Dimensions and mass (according to the manufacturer): 415×444×555 mm and 22.5 kg. Management is through 3,5″ graphic display (65k colours) with touch control. Connectivity includes Ethernet, and Wi-Fi is via ESP module (described as supplied with the printer) + NFC receiver.

For service and maintenance: the manufacturer's warranty notes specify that filaments such as plates with coatings (smooth/textured, etc.) are not covered under normal wear and tear, and cosmetic damage (scratches, dents, etc.) is also not covered - a detail that you should include in your acceptance and service procedures.

Professional scenarios: where CORE One+ brings real benefit

• Functional prototypes with repeatable dimensions: the combination of loadcell first layer, mesh levelling (only in the printing area) and a stable ecosystem reduces the time to "catch up" to the settings.
• Small production runs (jigs, jigs, housings): enclosure and process control make it easy to maintain consistency between batches.
• Education and training centers: less manual startup steps + clear operating procedures via PrusaSlicer/Prusa Connect.
• Engineering materials (PC/PA etc. according to profile): controlled environment and optional filtration for higher emission materials.
• Design studios: 3MF as a project format and profiles in PrusaSlicer support job handover between operators.
• Environment with security requirements: offline mode and the possibility of physically turning off the Wi-Fi module (according to the manufacturer's description).

Limitations and good practices + technical characteristics

Restrictions

• Chamber temperature up to 55 °C: some high temperature polymers and large flat parts may require more discipline in preparation (pre-tempering, orientation, structural compensators).
• Filtration: for materials with more ultrafine particles/vapours, the manufacturer offers the Advanced Filtration System as an optional solution - it is a good practice to combine it with room ventilation.
• Camera (optional): described as requiring an active Wi-Fi connection, which is important for network security policies.

Good practices

• Keep the plate clean; the manual states degreasing with IPA (isopropyl alcohol), if you touched the surface.
• For PA/PVA and other hygroscopic materials, plan for drying and storage (box/dryer) to avoid unstable extrusion.
• Use 3MF for internal transmission of tasks (model + settings) and archive of work profiles.
• When operating in a sensitive environment: configure an offline scenario and physically turn off the Wi-Fi module (if required by policy).

Technical characteristics

Prusa CORE One+ Firmware & Downloads
Prusa CORE One+ User Manual