Kobra S1 ACE 2 Pro Combo vs U1 3D Printer
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra S1 ACE 2 Pro Combo and U1 3D Printer are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra S1 ACE 2 Pro Combo if price and closed chamber matters more; choose U1 3D Printer if multi-extruder and work area matters more. On the category's overall technical index, Kobra S1 ACE 2 Pro Combo scores 59/100 against 47/100 for U1 3D Printer.
| Parameter |
Kobra S1 ACE 2 Pro Combo
Anycubic
F2 · Intermediate
|
U1 3D Printer
Snapmaker
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2026 | 2026 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | 599 € | 849 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 40 × 41 × 49 cm | 58.4 × 49.9 × 73 cm |
| Weight (kg) | 21.7 kg | 18.2 kg |
| Work area (mm) | 250 × 250 mm | 270 × 270 mm |
| Z-axis height (mm) | 250 mm | 270 mm |
| Power (W) | 1300 W | 1150 W |
| Maximum speed | 600 mm/s | 500 mm/s |
| Declared precision | 0.1 mm | 0.04 mm |
| Category specs | ||
| XY print surface (mm) | 250 mm | 270 mm |
| Maximum Z height (mm) | 250 mm | 270 mm |
| Kinematics | corexy | corexy |
| Max nozzle temperature (°C) | 320 °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 | True | True |
| Input shaper | True | True |
| Multicolor printing | true | True |
| Requires external accessory | false | False |
| Maximum colors | 8 | 4 |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | Compatible with the main slicers on the market. It supports cloud connectivity via the Anycubic app and Wi-Fi for remote monitoring, while still allowing offline use via USB. | 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
- Price: Kobra S1 ACE 2 Pro Combo 599 € vs U1 3D Printer 849 € — Kobra S1 ACE 2 Pro Combo wins (+42%)
- Closed chamber: Kobra S1 ACE 2 Pro Combo yes, U1 3D Printer no
- Maximum colors: Kobra S1 ACE 2 Pro Combo 8 vs U1 3D Printer 4 — Kobra S1 ACE 2 Pro Combo wins (+100%)
- Multi-extruder: U1 3D Printer yes, Kobra S1 ACE 2 Pro Combo no
- Max print speed: Kobra S1 ACE 2 Pro Combo 600 mm/s vs U1 3D Printer 500 mm/s — Kobra S1 ACE 2 Pro Combo wins (+20%)
Which one to choose
Choose Kobra S1 ACE 2 Pro Combo if…
you value price, closed chamber and maximum colors. «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, work area and maximum z height. «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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