The CORE One+ is Prusa’s first enclosed CoreXY machine — a significant departure from the MK series bedslinger lineage. It represents Prusa entering the market segment that Bambu and QIDI have dominated since 2022. The hardware specs (250×220mm, 250mm/s, 300°C, heated chamber) are below what competitors offer at lower prices. The case for the CORE One+ is Prusa’s software quality, long-term support reliability, and the expectation that problems will be documented and fixable — a track record that neither Bambu nor QIDI has matched in years of machines in the field.
What It Does Well
The heated chamber is genuine active heating — not a passive enclosure. The CORE One+ reaches and maintains chamber temperatures relevant for ABS and ASA (40–50°C), nylon (50–60°C), and PC (60°C+). This is the functional difference from passive-enclosure machines: a 270mm tall ABS part on the CORE One+ can complete with consistent layer bonding throughout; a passive enclosure machine may struggle with the first 50mm before the chamber warms up.
PrusaSlicer integration is the software argument. Prusa’s team maintains the CORE One+ profiles directly, and the feedback loop between hardware team and slicer team produces calibration quality that community-maintained profiles on Creality or Elegoo don’t match. For users who want to install the printer, load PrusaSlicer, and start printing without calibration research, this is real value.
SuperPINDA temperature compensation reduces bed-mesh error caused by bed thermal expansion. At 120°C bed temperatures with a 250mm build plate, this compensation is material.
Where It Falls Short
$1,199 for 250×220mm and 250mm/s is hard to defend against the Bambu P2S ($549) which has 256mm cube, 600mm/s, and a mature ecosystem at less than half the price. The CORE One+‘s case rests entirely on Prusa’s reliability track record and software quality — the hardware doesn’t compete on value.
250mm/s max speed is the sharpest limitation. At 250mm/s, a print that takes 1 hour on a Bambu or QIDI takes 2.5 hours. Over a month of regular printing, this represents real time lost.
300°C nozzle is adequate but not exceptional in this price tier. The QIDI Q1 Pro at $449 reaches 350°C with a better chamber. For users who need PEEK or PEI printing, the CORE One+ is not the machine.
Materials
ABS and ASA: 240–250°C, 100–110°C bed, zero fan. The heated chamber is the main reason to choose the CORE One+ for this material. Large ABS parts (200mm+) complete with consistent layer bonding that passive enclosures don’t always provide.
Nylon (PA): 250–270°C, 90°C bed. Garolite preferred over PEI for nylon bed adhesion. Dry filament 8–12h at 70°C. The 60°C chamber temperature is appropriate for most PA formulations.
PC: 270–280°C, 115–120°C bed. Chamber temperature is critical for PC — the CORE One+ provides it. Parts under 220mm tall in PC are reliable.
PETG: 240–245°C, 75°C bed. The enclosure reduces surface inconsistencies from drafts. For PETG alone, the machine is significant overkill.
PLA: Open the chamber door. PLA prints better without elevated ambient temperature. 215°C, 60°C bed.
vs. the Competition
Bambu P2S ($549): Larger volume (256mm cube), faster (600mm/s), passive enclosure, better price. Bambu’s software automation is nearly as good as PrusaSlicer for standard materials. The CORE One+ wins on active chamber heating and long-term support reliability.
QIDI X-Plus 3 ($599): 350°C nozzle, 60°C active chamber, 280mm volume, faster, lower price. For pure hardware specs in the enclosed engineering category, the QIDI wins. For Prusa’s ecosystem and software quality, CORE One+.
Prusa MK4S ($799): Open frame, no enclosure, 250×210mm, 200mm/s, $400 less. The MK4S is for users who don’t need an enclosure. If ABS/ASA/Nylon are the goal, the CORE One+ is necessary.