Kobra 3 vs Sidewinder X3 Plus
Technical comparison · Fused filament fabrication (FFF/FDM)
Kobra 3 and Sidewinder X3 Plus are two fused filament fabrication (fff/fdm) in a similar class. Choose Kobra 3 if max print speed matters more; choose Sidewinder X3 Plus if maximum z height and work area matters more.
| Parameter |
Kobra 3
Anycubic
F1 · Entry
|
Sidewinder X3 Plus
Artillery
F2 · Intermediate
|
|---|---|---|
| Riconoscimenti | — | |
| Identity | ||
| Launch year | 2024 | 2023 |
| Use tier | F1 — Entry | F2 — Intermediate |
| Price | ||
| Price (€) | ~220–300 € | ~280–360 € |
| Price updated on | 06/2026 | — |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 45.3 × 50.5 × 48.3 cm | 49.2 × 50.7 × 61 cm |
| Weight (kg) | 9.2 kg | 16.6 kg |
| Work area (mm) | 250 × 250 mm | 300 × 300 mm |
| Z-axis height (mm) | 260 mm | 400 mm |
| Power (W) | 400 W | — |
| Voltage (V) | 230 V | — |
| Maximum speed | 600 mm/s | 300 mm/s |
| Declared precision | 0.05 mm | — |
| Category specs | ||
| XY print surface (mm) | 250 mm | 300.0 mm |
| Maximum Z height (mm) | 260 mm | 400.0 mm |
| Kinematics | cartesian | cartesian |
| Max nozzle temperature (°C) | 300 °C | 300.0 °C |
| Max bed temperature (°C) | 110 °C | 100.0 °C |
| Max print speed (mm/s) | 600 mm/s | 300.0 mm/s |
| Closed chamber | False | — |
| Filament sensor | True | — |
| Auto leveling | mesh | mesh |
| Standard nozzle diameter (mm) | 0.4 mm | 0.4 mm |
| Multi-extruder | False | — |
| Native Klipper | True | — |
| Input shaper | True | — |
| Maximum colors | 1 | — |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | Operated via AnycubicSlicer and compatible with the proprietary cloud app. It leverages a Klipper-based firmware, natively integrating Input Shaping algorithms to reduce vibrations at high speeds. | The STM32 board runs Marlin and communicates via USB Type-C or TF card; it works with any standard slicer (Cura, PrusaSlicer, Simplify3D) without proprietary restrictions. Lack of Wi-Fi requires physical transfer of G-code files, but ensures full offline control. |
MakerSpecs Awards
Best value Entry
At €260 it offers the best performance-to-price ratio among the 6 entry-level Fused filament fabrication (FFF/FDM) machines, with a technical score of 90/100.
How we assign awards →Nessun riconoscimento in questa fascia.
The differences that matter
- Max print speed: Kobra 3 600 mm/s vs Sidewinder X3 Plus 300 mm/s — Kobra 3 wins (+100%)
- Maximum Z height: Kobra 3 260 mm vs Sidewinder X3 Plus 400 mm — Sidewinder X3 Plus wins (+54%)
- Work area: Kobra 3 250×250 mm vs Sidewinder X3 Plus 300×300 mm — Sidewinder X3 Plus wins (+44%)
- Price: Kobra 3 260 € vs Sidewinder X3 Plus 320 € — Kobra 3 wins (+23%)
- Max bed temperature: Kobra 3 110 °C vs Sidewinder X3 Plus 100 °C — Kobra 3 wins (+10%)
Which one to choose
Choose Kobra 3 if…
you value max print speed, price and max bed temperature. «The rated maximum speed indicates the theoretical hardware limit, not the everyday working speed. Faster machines reduce print times on simple geometries, but real-world speed depends on material, geometry, required surface finish, and slicer settings. Values above 200–300 mm/s are meaningful only on machines with CoreXY kinematics, active input shaping, and a stiffened mechanical frame.»
Choose Sidewinder X3 Plus if…
you value maximum z height and work area. «The Z height determines how tall a part the machine can produce in one print. Vertical objects such as vases, load-bearing structures, or casting patterns require a high Z travel. A lower value does not affect quality but forces the user to split or reorient the model. Z height should be considered alongside the XY surface to assess total usable build volume.»
MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.