Kobra S1 Max vs U1 3D Printer
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra S1 Max and U1 3D Printer are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra S1 Max if work area and closed chamber matters more; choose U1 3D Printer if multi-extruder and native klipper matters more.
| Parameter |
Kobra S1 Max
Anycubic
F2 · Intermediate
|
U1 3D Printer
Snapmaker
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2026 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~599–799 € | 849 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 50.27 × 48.3 × 58.4 cm | 58.4 × 49.9 × 73 cm |
| Weight (kg) | — | 18.2 kg |
| Work area (mm) | 350 × 350 mm | 270 × 270 mm |
| Z-axis height (mm) | 350 mm | 270 mm |
| Power (W) | 2200 W | 1150 W |
| Voltage (V) | 220 V | — |
| Maximum speed | 600 mm/s | 500 mm/s |
| Declared precision | 0.05 mm | 0.04 mm |
| Category specs | ||
| XY print surface (mm) | 350 mm | 270 mm |
| Maximum Z height (mm) | 350 mm | 270 mm |
| Kinematics | corexy | corexy |
| Max nozzle temperature (°C) | 350 °C | 300 °C |
| Max bed temperature (°C) | 120 °C | 100 °C |
| Max print speed (mm/s) | 600 mm/s | 500 mm/s |
| Closed chamber | True | False |
| Filament sensor | True | True |
| Auto leveling | mesh | mesh |
| Standard nozzle diameter (mm) | 0.4 mm | 0.4 mm |
| Multi-extruder | False | True |
| Native Klipper | False | True |
| Input shaper | True | True |
| Multicolor printing | True | True |
| Requires external accessory | True | False |
| Maximum colors | 4 | 4 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The firmware runs on a proprietary Kobra OS layer built on top of Klipper; the official slicer is Anycubic Slicer Next, derived from OrcaSlicer, available for Windows and macOS. Third-party OrcaSlicer is also supported. Remote monitoring and control are available via the Anycubic app (iOS/Android) over LAN, with no mandatory cloud connection required for ordinary printing operations. Unlike the Combo version, the ACE 2 Pro module is not included in the box. | The primary software is Snapmaker Orca, an optimized version of the popular OrcaSlicer, which provides native management of the four toolheads and factory-calibrated material profiles. The printer can also be seamlessly managed via the Snapmaker mobile app for remote monitoring, taking advantage of the built-in 1080p camera. The internal firmware is built on Klipper, Moonraker, and Fluidd, which Snapmaker has made open-source, allowing experienced users to customize the machine and integrate it into complex workflows. |
The differences that matter
- Work area: Kobra S1 Max 350×350 mm vs U1 3D Printer 270×270 mm — Kobra S1 Max wins (+68%)
- Closed chamber: Kobra S1 Max yes, U1 3D Printer no
- Price: Kobra S1 Max 699 € vs U1 3D Printer 849 € — Kobra S1 Max wins (+21%)
- Maximum Z height: Kobra S1 Max 350 mm vs U1 3D Printer 270 mm — Kobra S1 Max wins (+30%)
- Multi-extruder: U1 3D Printer yes, Kobra S1 Max no
Which one to choose
Choose Kobra S1 Max if…
you value work area, closed chamber and price. «A closed chamber reduces thermal gradients around the part being built, limiting warping and cracking caused by rapid cooling in high-shrinkage materials such as ABS, ASA, and PC. It also shields the mechanism from drafts and airborne particles. A closed chamber is effectively necessary for technical materials; for PLA and PETG it is an advantage, not a requirement.»
Choose U1 3D Printer if…
you value multi-extruder and native klipper. «A second extruder allows printing with two different materials in the same session: soluble support material for complex geometries, or a combination of rigid and flexible in the same part. It expands process capabilities but introduces calibration complexity and the risk of oozing from the idle nozzle. Most useful for work involving geometries that require supports difficult to remove manually.»
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