Anycubic Kobra 3 V2 — Machine Reference & Connection Guide
Anycubic Kobra 3 V2 — Machine Reference
The Kobra 3 V2 with ACE Pro is a multi-color FDM printer running Klipper firmware. It is NOT a standard Marlin machine — configuration and connection work differently than most desktop printers.
Connection
| Method | Details |
|---|---|
| LAN (primary) | http://<printer-ip> — Klipper/Moonraker web UI |
| WiFi | Via Anycubic App — enable in touchscreen settings |
| USB-C | Direct to PC for file transfer only |
| SSH | root@<printer-ip> — Klipper/Moonraker stack |
| mDNS | kobra3v2.local if your router supports mDNS |
To find the printer IP: touchscreen → Settings → Network → IP Address.
Software
- Anycubic Slicer — the official slicer, pre-configured profiles for Kobra 3 V2 + ACE Pro
- Orca Slicer — community favorite, import Anycubic machine config from the slicer library
- Moonraker — the API layer between Klipper and the web UI, runs on the printer
- Klipper — the firmware running on the printer MCU
For Orca Slicer: Printer Settings → Select Anycubic → Kobra 3 Combo → configure filament slots.
Firmware
Firmware is updated via:
- Anycubic Slicer — check for updates in app settings
- SD card — download from Anycubic website, copy to SD, insert in printer, it flashes automatically
- OTA — some versions support over-the-air updates via the app
Do NOT use third-party Klipper configs without understanding what you are changing — the ACE Pro system has custom macros for multi-color purging.
ACE Pro Multi-Color System
- Slots numbered 1–4 (left to right)
- Purge tower is mandatory for color changes — tune purge volume per material
- Slot-to-extruder mapping is handled by the printer, not the slicer
- If the ACE Pro jams: open the top lid, clear the path manually, resume from touchscreen
Useful Links
- Official firmware & software downloads
- Anycubic Wiki — Kobra 3 Combo
- Anycubic Community Forum
- Reddit r/anycubic
- Orca Slicer releases
Common Issues
Printer not found on network: Restart the router and printer. Make sure both are on the same subnet (2.4GHz, not 5GHz).
ACE Pro filament not loading: Check that the PTFE tubes are fully seated in the ACE unit fittings. A 1-2mm gap causes feeding failures.
First layer inconsistent: Run the auto-leveling routine after every cold move of the printer.
Web UI unreachable via mDNS: Use the IP address directly. mDNS reliability varies by router.