Prusa Product Line Upgrade: XL+, CORE One+, and CORE One L+
Prusa Research has updated three of its flagship 3D printers, introducing the Prusa XL+, CORE One L+, and CORE One+ (Gen 2).
The Czech manufacturer states that these new models are not complete replacements for existing machines but rather incremental upgrades, with plans to offer upgrade kits for current XL or CORE One printer owners.
Prusa XL+, CORE One+, and CORE One L+ Upgrade Highlights
The Prusa XL+ adds a tool offset sensor, which Prusa claims speeds up tool head alignment by approximately 20 times.
The CORE One+ (Gen 2) removes the heated bed "soak time" step when temperatures are 85°C or lower.
Prusa is selling the upgraded XL+, CORE One+, and CORE One L+ at no increase in price.
Prusa has added an integrated nozzle wiper to all three upgraded machines, designed to clear residual filament before printing, as well as new GT1.5 belts which Prusa states can reduce the visibility of subtle, repetitive surface artifacts, especially on large, smooth walls.
Beyond these common changes, the upgrades differ significantly between printers.
Prusa XL+: New Cooling System, Faster Tool Calibration
The biggest improvements in this update are seen in the company's 360 × 360 × 360 mm tool-changing printer, now called the Prusa XL+.
Its most significant improvement is the adoption of a new 360-degree part cooling system, similar to those found in the MK4S and CORE One series. According to Prusa, the improved system provides greater, more uniform airflow around the nozzle, which is expected to greatly benefit bridging, overhangs, and small details.
New Tool Offset Sensor
The Multitool XL+ also features a new tool offset sensor. This permanently mounted eddy current sensor automatically measures the alignment of each tool head during setup, replacing the previous calibration procedure that required a removable pin.
The new process is approximately 20 times faster. The sensor will also support Prusa's upcoming silicone tool heads.
High-Flow Nozzle Now Standard
High-flow nozzles are now standard on the XL+, and the new nozzle wiper should help clear any blobs and stringing that might affect the print surface before printing begins.
Prepped for High-Temperature Chamber Printing
The redesigned chamber utilizes heat generated by the printer itself to reach approximately 50°C, with a planned active chamber heater to boost temperatures to 60°C.
CORE One+ Gen 2: Reduced Print Start Waiting Time
Among Prusa's smaller enclosed printers, the CORE One+ (Gen 2) sees the most significant changes.
In addition to the new belts and nozzle wiper, it features a "redesigned heated bed mounting system" that allows it to heat up quickly and maintain flatness without additional waiting.
This will shorten the time from sending a print job to the printer to seeing the first layer completed. High-temperature prints will also start faster.
The second generation also adopts the snap-on top cover previously introduced on the larger CORE One L. This top cover can be removed without tools for easier maintenance. Prusa also states that they have strengthened the automatic ventilation mechanism beneath the top cover.
CORE One L+: Minor Upgrades to a Mature Platform
Meanwhile, the larger CORE One L+ receives relatively minor upgrades. Its main new features are the adoption of the same GT1.5 belts and nozzle wiper.
Compared to the XL+'s tool head and cooling system upgrades, and the CORE One+ Gen 2's heated bed and maintenance improvements, the CORE One L+ update focuses more on improving print surface quality and pre-print nozzle cleaning procedures.
INDX, PrusaSlicer 3.0, and More Coming Soon
This hardware update is accompanied by a series of upcoming additions to the Prusa ecosystem.
INDX Automatic Tool Changer
The company states that the first batch of INDX automatic tool changers for the CORE One+ are about to ship and will be fully compatible with the Gen 2 machine. Prusa is also running the INDX system on the larger CORE One L+ machine.
Automatic Pressure Advance Calibration
Another feature currently in testing is automatic pressure advance calibration before each print.
The printer will use a load cell to characterize the loaded filament and adjust extrusion behavior based on flow changes, rather than relying on a single, fixed pressure advance value.
PrusaSlicer 3.0
Software will also see a major update. Prusa states that the first alpha version of PrusaSlicer 3.0 will be released in a few weeks.
Since PrusaSlicer supports the company's entire product line, these improvements are not limited to users who purchase new printers.
Prusa Connect Local
Prusa Connect Local is under development and is intended to replace PrusaLink.
The new system aims to provide Prusa Connect-style printer management on a local network, without requiring a cloud connection.
Early versions of Prusa Connect Local will first be available to technically proficient users who can compile and test the software themselves.
Prusa Plus Series Upgrade Summary
Overall, the changes to the XL+, CORE One L+, and CORE One+ Gen 2 amount to a comprehensive mid-cycle refresh—addressing workflows such as calibration time, print cleanup, maintenance, cooling, and surface artifacts.
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