【3D Printing】Prusa Core One: High-Efficiency and Reliable Consumer-Grade Product
The Prusa Core One retains its slightly industrial look, but its design is more refined, a characteristic not found in traditional frame-bed gantries.
The CORE One offers ultra-fast CoreXY printing with the same quality consumers expect from the MK4S, while also providing an upgrade path, making it the top choice for any professional seeking a 3D printing solution.
Of course, the company has already released other CoreXY systems.
For example, the tool-changing Original Prusa XL is a highly recommended machine in this category.
However, with an estimated retail price of around $2,500 for a pre-assembled unit, the XL is clearly aimed at professional consumers.
It's not easy for Prusa to achieve such a price point. Additionally, MK4S owners will eventually be able to upgrade their machines for less than half the price of the Core One kit.
The Prusa Core One is a brand-new, fully enclosed CoreXY 3D printer, moving away from the company's usual open-frame bed design.
The CORE One aims to integrate all the speed and functionality of the MK4S and XL into a newly developed and redesigned machine – heralding the next era of 3D printing.
With the Core One, it takes less than 10 minutes from unboxing to powering on and starting a print, making it incredibly fast and simple.
The company's signature Nextruder toolhead, with its "always perfect first layer" and other incrementally improved user-friendliness features, has helped to eliminate the previously steep learning curve of 3D printing.
Even Wi-Fi connectivity has been simplified through the Prusa app's NFC setup process, which was launched with the MK4S in the summer of 2024.
The company's software, Prusa Slicer, is also steadily improving, even drawing inspiration from Bambu Studio to implement workflows familiar to Bambu users, such as multi-bed slicing.
Functionally, the Core One's first print is as smooth as the MK4S, requiring only a few automatic calibration procedures and minimal user involvement to test the load cell and filament sensor.
Moreover, the packaging and form factor of this machine are incredibly compact.
The large enclosure that previously had to be installed around the MK4S took up a lot of space, whereas the new Core One easily fits into most of your shelving units.
Prusa states that the Core One occupies 50% less space than the previous combination, while its build volume has increased by 30%, which is quite remarkable.
One minor detail is that the Core One's plug does not protrude directly from the back of the machine, saving valuable space.
This indicates the meticulous thought the Prusa team put into how the system can save space.
Despite its smaller size, the Core One has a build volume of 220 x 250 x 270 mm, which is 30% taller than the MK4S, and Prusa claims it's even 15-20% faster.
Slicing with Prusa Slicer and early access profiles shows an estimated speed increase of about 13% for a sample part using the default 0.20 mm "SPEED" profile and Prusament PLA - 6 hours 33 minutes, down from 7 hours 35 minutes.
Printing a Benchy is reduced from 36 minutes to 33 minutes, about 8% faster (including cool-down time and pre-print checks).
One of the most popular aspects of Prusa machines is the ability to upgrade, tune, and customize them to suit specific workflows.
While the Prusa CORE One looks much more refined than previous open-frame designs, there are still plenty of upgrade options.
It supports the MMU3 for multi-material printing and includes a new GPIO expansion board to integrate accessories like active LEDs, wired DSLR camera triggers, and more.
The two main design features of the Core One are: first, it's a CoreXY machine; and second, it features a fully enclosed frame.
The enclosure is made of solid steel profiles, ensuring rigidity. Meanwhile, Prusa opted for a durable polymer for the doors and sides instead of glass, stating that this material is stronger and safer than the glass alternatives used in many high-end 3D printers.
Another point is that the XY gantry is made of steel, rather than a mix of steel and aluminum, to ensure no discrepancies due to thermal expansion.
A feature of this design is that the doors can open 180°, allowing for easy access.
Additionally, you can flip the position of the door, allowing it to switch from opening left-to-right to right-to-left, enabling you to adjust it according to your workspace layout.
Prusa introduced powerful cooling for the Nextruder with the MK4S, and this carries over to the Core One, which performs exceptionally well with its 75º overhang capability.
By printing the Scandic Plate durability test using Prusament Galaxy PLA, the results were as impressive as with the MK4S.
It's reasonable to worry that an enclosure might compromise the performance of low-temperature materials like PLA, but the Core One features active chamber temperature control, thanks to its dual enclosure fans and top vents.
The company stated at the Core One's Formnext presentation that during testing, the internal temperature remained at 27 ºC with the lab doors closed.
This feature means you no longer need to remember to open the printer door and top cover.
When looking at the CORE One's print head, it appears very similar to the one on the MK4S, mainly because the cooling system provides the same 360° airflow.
Therefore, it is once again equipped with a high-flow nozzle, capable of meeting the printer's high-speed demands.
The CORE One's design is completely new, highlighting a shift in Prusa's 3D printer design approach first seen in the XL.
This is a clear evolution that meets many users' expectations with a fully enclosed CoreXY design and multi-material compatibility.
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