Prusa CORE One + FDM 3D Printer

The Prusa Core One improves the Prusa MK4S on almost all levels and offers a completely closed plug-and-play 3D printing experience. This makes this 3D printer ideal for educational institutions, office environments, but also for technical prototypes within R&D departments.

The Integrated Enclosure

The big difference between the Core One and the MK4S is the steel enclosure that is integrated with the printer and functions as a structure. The integration of this has made it possible to make the Core one 50% compacter for 30% more build volume up to 250×220×270 mm. The door of the enclosure also has a safety sensor. It can be set to stop the printer automatically when opened. For example, this is an important requirement when used in educational environments. An optional HEPA filter system and camera are also available separately.

Printing with 5 materials: the MMU3 Enclosed

The MMU3 is an optional add-on designed to work with the Prusa3D printers, allowing them to print with up to five colours at once. It is the fastest and most efficient solution for multiple materials with one print nozzle available, and delivers excellent quality with minimal waste. Similar solutions often produce much more waste than the printed object itself. The MMU3 offers great performance, high speed and the best user experience, only surpassed by more advanced solutions such as the Original Prusa XL, die beschikt over maximaal vijf onafhankelijke printkoppen.

Temperature control for technical FDM filaments.

This enclosure has fans that actively control the temperature up to 55 degrees. This makes it possible to ASA, PC and nylon printing. Without this control, these prints would distort and unload the build plate. The active temperature control also allows to filaments such as PLA and PET, which do not require heat, to use with the door closed. Unlike the MK4S and just like the Prusa XL, uses the Core One the build plate as Z-axis, which makes it possible to concentrate the heat on the part to be printed.

360° cooling and High-flow nozzle

Like the MK4S, the Core One uses the same cooling as the industrial Prusa HT90. It cools the melted plastic around the nozzle under high pressure and makes it possible to print 75° corners without support. The Core also uses One the same high flow nozzle system that can heat more plastic at the same time and thus extrude more. This unlocks the print speed where the original MK4 had its limitations.

Control the printer online or offline

It is possible to control the printer via a mobile app, the online platform Prusa Connect, or via WiFi with the free Prusa Slicer. It is also possible to extract the entire WiFi module from the printer and control the printer via a direct ethernet connection or USB. Prusa firmware and software are complete open-source. This means that it is possible to see exactly what the software does. Software updates can be done via USB.

The challenge between the Prusa Core One and Core One +

In November 2025, Prusa renamed the Core One to the Core One+. This new version features several useful features that were introduced by the larger Prusa Core One L:

• Automatically opening air grid for PLA and PET
• Verbeterde spoelhouder
• Mechanical switch for a more reliable supply of flexible filament