Prusa Research Prusa CORE One+ (Gen 2)

By Prusa Research · 3D Printers · 3D Printing

  • 250 x 220 x 270 mm build volume (14.9 L), CoreXY
  • Fully enclosed, active chamber heating up to 55 C
  • 290 C max nozzle (400 C with HT hotend upgrade)
  • 22.5 kg

Lowest price seen
$1,449.00
from $1,449.00 at Printed Solid · Checked Oct 10, 2026

Prices are snapshots. Check the current price with the store.

Summary

A fully enclosed CoreXY FDM 3D printer from Prusa Research with an actively heated chamber, sold assembled or as a kit. The Gen 2 revision cuts the pre-print heat soak for materials runnable on a bed up to 85 C and adds new belts and a nozzle wiper, but no independent instrumented test of this exact model has been published.

Strengths

  • A fully enclosed, actively heated chamber holds high-temperature materials that open-frame printers cannot.
  • CoreXY motion plus the Gen 2 GT1.5 belts target cleaner surfaces on large flat parts.
  • The integrated nozzle wiper cleans the nozzle before a print without user action.
  • The redesigned heatbed mounting removes the separate heat-soak wait for beds up to 85 C.
  • Prusa backs the platform with a knowledge base and spare parts for the CORE One family.
  • Sold assembled or as a cheaper kit for buyers willing to build it themselves.

Weaknesses

  • No independent instrumented test of this exact model was found at the time of checking.
  • Owner discussion is thin: one Gen 2 thread reports a kit whose linear-rail mounts would not align, landing about 8 mm out once joined by the crossbeam.
  • Build volume, nozzle and chamber temperature limits, layer height and weight come from Prusa product data, not the official spec sheet.
  • The HT Hotend, INDX Toolchanger, camera, advanced filtration and extra print sheets are all separate purchases.
  • A dedicated “Selftest failed (CORE One/+)” article exists in Prusa’s knowledge base, so selftest faults are common enough to document.
  • Squeaky gearbox noise has been reported on the CORE One L, a different model, and is worth watching on this one.

Verified specifications

ModelPrusa CORE One+ (Gen 2).
Motion systemCoreXY.
Enclosurefully enclosed, with active chamber temperature control.
Build volume250 × 220 × 270 mm (listed by Prusa as product data, not confirmed on the official spec sheet).
Max nozzle temperature290 C standard, 400 C with the optional HT Hotend upgrade.
Chamber heatingactive, up to 55 C.
Layer height0.05–0.30 mm.
Weight22.5 kg.
BeltsGT1.5, new in Gen 2.
Nozzle wiperintegrated, new in Gen 2.
Heatbedredesigned mounting removes the separate “Absorbing heat” wait for bed temperatures up to 85 C.
Material profilesover 200 ready-to-use profiles.
First printPrusa claims 10 minutes after unpacking.
In the boxUS power cable and English handbook.
Full research notes and sources

What you get and what costs extra

The CORE One+ ships assembled from Prusa’s US store for $1,202.78, or as a kit for $925, with a stated lead time of one to two weeks (Prusa, 2026). Assembled buyers skip the build; kit buyers trade that time for the lower price.

Several capabilities are not in the base machine. The HT Hotend upgrade raises the nozzle limit to 400 C, the INDX Toolchanger adds multi-material work, and a camera, advanced filtration and additional print sheets are sold separately. Budget for filament, which is the recurring cost whatever you print.

Specs Prusa has not confirmed

The manufacturer page states the enclosure, CoreXY motion, GT1.5 belts, nozzle wiper, heatbed mounting and the 200-plus material profiles. The build volume, maximum nozzle and chamber temperatures, layer height and weight come from product identity data and were not confirmed on the official spec sheet at the time of checking. Treat those figures as provisional and verify them against Prusa before ordering.

Assembly and setup

Prusa claims a first print 10 minutes after unpacking, helped by the redesigned heatbed mounting that removes the separate wait for materials run up to 85 C. Kit builders should budget more time. One owner thread on the Gen 2 kit describes being unable to align the linear rail mounts so they sit truly opposite each other, with about 8 mm of error once the crossbeam goes on; disassembling and reassembling did not fix it, and it is unclear whether a part is defective or the assembly went wrong. That is a single report and cannot be generalized, but it is the kind of fault to check for while building.

Reliability and upkeep

Prusa publishes troubleshooting articles for the CORE One family covering selftest failure, clogged nozzles and belt tension, and sells spare parts through its store, so repairs are supported rather than improvised. The company also treats selftest failure as common enough to warrant its own CORE One/+ article. The CORE One L has drawn reports of a squeaky sound during printing that did not reproduce under manual axis movement, with a gearbox grease fix suggested; that is a different model, so file it as a pattern to monitor rather than a fault of this printer. No US warranty terms were found in the sources.

Is it worth it?

At $1,202.78 assembled, the CORE One+ sits in the premium FDM segment. What you pay for is the fully enclosed active-heated chamber, CoreXY motion, the Gen 2 changes and Prusa’s support and slicer ecosystem, and the price is in line with other enclosed CoreXY machines in this class. The $925 kit is the way in if you enjoy building. The catch is that independent testing and broad owner feedback are both missing so far, so you are buying on Prusa’s reputation and the stated specifications rather than on measured third-party results.

Which model this is

This page covers the Prusa CORE One+ (Gen 2), the revision of the enclosed CORE One platform. The “Gen 2” tag matters: it adds the redesigned heatbed mounting, GT1.5 belts and the integrated nozzle wiper. Do not merge it with the original CORE One (Gen 1), the CORE One L+, or the CORE One INDX variants.

The US listing for this printer is ASIN B0GH1LMV8R.

Sources

Manufacturer:

Independent reviews:

  • No independent instrumented test of this exact model was found at the time of checking.

Owner reports:

Buying guides for this category

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