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Anycubic
Anycubic Kobra S1
FDM filament printer. Build volume: 250 × 250 × 250 mm.
Assessed from documentation Updated on October 4, 2026
How to recognize it: Check the full model name “Kobra S1” on the label or in device information. Suffixes and revisions identify different models; check the source before selecting parts.
Technical specifications
Manufacturer specifications for the listed configuration. Notes identify accessories, measurement conditions and calculated values.
Technology and structure2
| Technology | FDM |
|---|---|
| Build area shape | Rectangular |
Build area and volume4
| Build area X | 250 mm |
|---|---|
| Build area Y | 250 mm |
| Build area Z | 250 mm |
| Build volume | 15.625 L Calculated from nominal X × Y × Z dimensions. |
Hardware5
| Enclosed as standard | Yes |
|---|---|
| Extruder type | Direct drive |
| Standard nozzle | 0.4 mm |
| Available nozzle diameters | 0.25, 0.4, 0.6, 0.8 mm |
| Build plate | PEI spring steel |
Temperatures2
| Maximum hotend temperature | 320 °C |
|---|---|
| Maximum bed temperature | 120 °C |
Speed and performance3
| Advertised maximum print speed | 600 mm/s |
|---|---|
| Advertised typical print speed | 300 mm/s |
| Maximum acceleration | 20,000 mm/s² |
Features4
| Automatic leveling | Yes |
|---|---|
| Filament runout sensor | Yes |
| Power loss recovery | Yes |
| Camera | Built in |
Connectivity4
| Control display diagonal | 4.3 in |
|---|---|
| Control display | Capacitive touchscreen |
| Listed slicers | Anycubic Slicer Next |
| Firmware | Kobra OS |
Materials1
| Manufacturer-listed materials | PLA, PETG, TPU, ABS, ASA |
|---|
Dimensions and weight4
| Machine width | 400 mm |
|---|---|
| Machine depth | 410 mm |
| Machine height | 490 mm |
| Net weight | 9.37 kg |
Power1
| Advertised noise | 46 dB Standard mode; ≤ 44 dB in quiet mode. |
|---|
Technical sources: Kobra S1 — documentazione ufficiale
Undocumented specifications (22)
- Kinematics: Not documented
- Shared dual-nozzle area X: Not documented
- Shared dual-nozzle area Y: Not documented
- Shared dual-nozzle area Z: Not documented
- Installed toolheads / extruders: Not documented
- Filament diameter: Not documented
- Nozzle material: Not documented
- Chamber heating: Not documented
- Maximum chamber temperature: Not documented
- Maximum travel speed: Not documented
- Maximum volumetric flow: Not documented
- Minimum layer thickness: Not documented
- Maximum layer thickness: Not documented
- Multicolor system: Not documented
- Colors with documented configuration: Not documented
- Air filtration: Not documented
- Connectivity: Not documented
- Internal storage: Not documented
- Rated power: Not documented
- Power supply: Not documented
- Leveling method: Not documented
- Advertised Z accuracy: Not documented
No published compatibility for this printer.
Accessories with verified compatibility
| Accessory | Printer variant | Status |
|---|---|---|
| Anycubic Kobra S1 original spare parts Kobra S1 / Kobra S1 Combo | Kobra S1 | Verified compatibility Verified on October 12, 2026 Model listed by the manufacturer’s official store. No hands-on test. |
| Anycubic original hardened steel quick-release hotend Kobra S1 / Kobra 3 Max | Kobra S1 | Verified compatibility Verified on October 12, 2026 Model listed by the manufacturer’s official store. No hands-on test. |
Related guides
General guides help identify print defects. Follow the manual for your exact model and variant for disassembly, maintenance and calibration.
- First layer not sticking: causes and checks
How to recognise a first layer that is too high, too squished or uneven and fix it in order: plate cleaning, slicer profile, leveling, Z offset. Based on official guidance from Bambu Lab, Prusa, Creality, Elegoo and Anycubic.
- Warping: corners lifting off the bed with ABS, ASA, PETG and PLA
Why corners curl and how to reduce it: plate cleaning, drafts, enclosure, bed temperature, brim and ears, cooling and glue. Based on official guidance from Bambu Lab and Prusa and on user experience.
- Clogged nozzle and under-extrusion: find where the blockage is and fix it
How to tell a blockage in the PTFE tube, the extruder or the hotend apart, when to use the needle and cold pull, how to recognise heat creep, and when replacing the nozzle, PTFE tube or gears is actually justified.
- Wet filament: recognise it, dry it and store it
Symptoms of filament that has absorbed moisture, the most sensitive materials, how to dry following Bambu Lab and Prusa official tables without damaging spool or filament, and how to keep it dry.
- Stringing and oozing: how to get rid of filament strings and blobs
How to recognise stringing and oozing, the main causes (wet filament, temperature, retraction, travel moves, nozzle) and the checks to do in order, with official guidance from Prusa, Bambu Lab, Creality and Elegoo.
- Layer shifting: causes and checks in order
Why layers shift along X or Y and how to find the cause: obstructions, collisions with curled parts, belts, pulleys, speed, electronics cooling and motors, with official guidance from Prusa, Bambu Lab, Creality, Elegoo and Anycubic.
- Ringing and ghosting: getting rid of ripples on FDM print walls
What ringing (or ghosting) is, why it appears after corners and lettering, and how to fix it in order: printer surface, loose parts, belts, lubrication, vibration calibration (input shaping), speed and acceleration.
Dates and news
-
Anycubic opens Kobra S1 Combo pre-orders
Anycubic announced S1 Combo pre-orders from 2 January 2025 at a stated founder’s price of US$549 / €549. The release distinguished this phase from Super Early Bird pricing from 6 January and in-stock sales scheduled from 11 February.
Sources: Anycubic Kobra S1 Combo brings high-speed multicolor 3D printing to creators (3DPrinting.com) · Anycubic — S1 Combo pre-sale (manufacturer press release) (Anycubic via PR Newswire)
Official documentation
Manuals and guides published by Anycubic. Links go to the manufacturer’s site; we consulted them on the date shown.
- Support page
-
- Support hub page (Anycubic Wiki) — English, accessed on October 5, 2026
- User manual
-
- Kobra S1 Combo — user manual (EN, v1.3) — English, accessed on October 5, 2026
- Kobra S1 Combo — user manual (IT, v1.0) — Italian, accessed on October 5, 2026
- Quick start guide
-
- Quick start guide — English, accessed on October 5, 2026
- Maintenance
-
- Maintenance recommendations — English, accessed on October 5, 2026
- Cleaning a clogged hotend — English, accessed on October 5, 2026
- Troubleshooting
-
- Frequently asked questions (FAQ) — English, accessed on October 5, 2026
- Troubleshooting: clogged print head — English, accessed on October 5, 2026
- Troubleshooting: shifted layers — English, accessed on October 5, 2026
- Troubleshooting: incomplete first layer in some areas — English, accessed on October 5, 2026
- Nozzle scraping the bed: recalibrating bed flatness — English, accessed on October 5, 2026
- Parts replacement
-
- Quick-release hotend replacement — English, accessed on October 5, 2026
- Nozzle silicone sock replacement — English, accessed on October 5, 2026
- XY belt replacement — English, accessed on October 5, 2026
- Filament cutter replacement — English, accessed on October 5, 2026
- Firmware and software
-
- Firmware update guide and release notes — English, accessed on October 5, 2026
- Technical specifications
-
- Introduction to the main components — English, accessed on October 5, 2026
- Official documentation — English, accessed on October 5, 2026
Sources
- Kobra S1 — official documentation — Anycubic, accessed on October 5, 2026