Desktop 3D Printers

Creality K1 Max vs Bambu Lab X1-Carbon: spec comparison

The Creality K1 Max and the Bambu Lab X1-Carbon are both enclosed CoreXY printers with lidar and AI failure detection. Build volume, speed claim, firmware license and price are where the spec sheets split.

By Desktop 3D Printers Editorial TeamPublished Verified

White parts on supports mid-print inside a Bambu Lab X1-Carbon, the toolhead above them
Photo: UC Davis College of Engineering (Valerie Quiroz/UC Davis), CC BY 4.0
Creality K1 Max vs Bambu Lab X1-Carbon: full spec comparison
SpecCreality K1 MaxBambu Lab X1-Carbon
StatusShippingDiscontinued
ReleasedJul 2023Aug 2022
Launch price$899$1,199
Motion systemCoreXYCoreXY
AnnouncedApr 2023May 2022
Build volume300 × 300 × 300 mm256 × 256 × 256 mm
EnclosureEnclosed (passive)Enclosed (passive)
Air filtrationActivated carbonActivated carbon
Stock build plateSmooth PEI, flexible spring steel, magneticCool plate (low-temperature coating) / Engineering plate, double-sided, flexible spring steel, magnetic (Launch spec: Bambu Cool Plate with Engineering Plate on the reverse; Bambu says later X1 units shipped with varying plates)
Max chamber temp—60 °C
Max hotend temp300 °C300 °C
Max bed temp120 °C120 °C
Max speed (claimed)600 mm/s500 mm/s
Max acceleration (claimed)20,000 mm/s²20,000 mm/s²
Max volumetric flow (claimed)32 mm³/s32 mm³/s
ExtruderDirect driveDirect drive
Stock nozzle0.4 mm hardened steel0.4 mm hardened steel
Nozzles11
Multi-materialCreality CFS (optional K1 Series CFS upgrade kit)AMS (optional, 4 spools per unit, up to 4 units)
Bed levelingAutomaticAutomatic
FeaturesFilament runout sensor, Camera, Lidar, Input shaping, Air filtration, Power-loss recovery, AI failure detectionFilament runout sensor, Camera, Lidar, Input shaping, Air filtration, Power-loss recovery, AI failure detection
FirmwareCreality OS (Klipper-based) (open source)Bambu Lab firmware (closed source)
ConnectivityWi-Fi, Ethernet, USB, CloudWi-Fi, SD card, Cloud
Laser moduleNone offeredNone offered

The Creality K1 Max and the Bambu Lab X1-Carbon are enclosed CoreXY printers, which move the toolhead in X and Y and the bed only in Z. Both list a 300 °C hotend, a 120 °C bed and a hardened steel nozzle, with a laser-based lidar sensor and camera-based AI failure detection. The K1 Max lists the larger build volume and higher top speed and launched at $899; the X1-Carbon lists a chamber temperature and launched at $1,199.

What is the difference between the Creality K1 Max and the Bambu Lab X1-Carbon?

The Creality K1 Max lists a 300 × 300 × 300 mm build volume and a 600 mm/s maximum speed. The Bambu Lab X1-Carbon lists 256 × 256 × 256 mm and 500 mm/s. Both claim 20,000 mm/s² acceleration and 32 mm³/s flow. The K1 Max firmware source is public; the X1-Carbon firmware is proprietary.

How much bigger is the Creality K1 Max build volume?

The Creality K1 Max holds about 60% more volume than the Bambu Lab X1-Carbon. The K1 Max lists 300 × 300 × 300 mm, or 27 liters; the X1-Carbon lists 256 × 256 × 256 mm, about 16.8 liters. Each axis is 44 mm longer on the K1 Max.

Per-axis length decides whether a large part prints in one piece. Say the part has a 280 × 280 mm footprint: it fits inside the K1 Max’s listed 300 × 300 mm, but the X1-Carbon would need it split into sections.

Do both printers have heated chambers?

Neither the Creality K1 Max nor the Bambu Lab X1-Carbon has a chamber heater. Bambu Lab states a 60 °C chamber temperature for the X1-Carbon’s enclosure; Creality publishes none for the K1 Max. This database lists both as passive enclosures, warmed only by the bed and hotend. The chamber temperature list shows how other enclosed printers compare.

What firmware do they run?

The Creality K1 Max runs Creality OS, which is based on the open-source Klipper firmware. Creality publishes the K1 Max source on GitHub under the GNU General Public License v3 (GPL-3.0). The Bambu Lab X1-Carbon runs Bambu Lab’s proprietary firmware. The firmware guide explains what open source changes in practice.

Connectivity differs too. The K1 Max lists Ethernet and USB alongside Wi-Fi; the X1-Carbon lists Wi-Fi and an SD card.

Are both printers still available?

Creality still lists the K1 Max as a current model. The Bambu Lab X1-Carbon is discontinued: Bambu Lab announced the end of the X1 series, and the X1-Carbon reached end of life on March 31, 2026. New units now depend on remaining retail stock.

Sources

Last verified

  1. Creality, K1 Max product page (accessed Sep 29, 2026)
  2. Creality Wiki, K1 Max user manual, device specifications (accessed Sep 29, 2026)
  3. Creality on GitHub, K1_Series_Klipper firmware source (GPL-3.0) (accessed Sep 29, 2026)
  4. 3DPrint.com, Creality begins selling K1 Max at lower price (2023-07-10) (accessed Sep 29, 2026)
  5. Bambu Lab, X1-Carbon technical specifications sheet (PDF) (accessed Sep 29, 2026)
  6. Bambu Lab, X1 series product page (accessed Sep 29, 2026)
  7. Bambu Lab Blog, The X1-series is EOL (accessed Sep 29, 2026)