KX-Bridge

Control your Anycubic Kobra X with OrcaSlicer — no Klipper, no Raspberry Pi.

A Moonraker-compatible bridge that talks directly to the printer.

_{🇩🇪 Deutsche Version}

   

_{Like KX-Bridge? A coffee on Ko-fi keeps the project alive. ☕}

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✨ Features

🖨️	Printer control — start, pause, resume, cancel, temperatures, print speed
📊	Live status — temperature, progress, layers, remaining time, camera stream
🎨	AMS / multicolor — filament slots, per-channel remapping, MMU emulation for OrcaSlicer filament sync
🗂️	GCode browser — uploaded files with thumbnails, print history, search & filter
🧩	Multi-printer — multiple printers in one bridge instance, switch via dropdown
➕	Add a printer with one click — just enter the IP, credentials are imported automatically
🔄	Self-update — install new versions directly in the browser
🌐	OrcaSlicer — full Moonraker protocol (HTTP + WebSocket), EN/DE UI

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🚀 Quick Start

1. Prepare the printer

Enable LAN mode on the Kobra X: Printer display → Settings → Enable LAN mode

2. Start the bridge

Docker (recommended):

docker compose up -d

Linux binary (no Docker):

chmod +x kx-bridge && ./kx-bridge

Windows EXE (no Docker):

kx-bridge.exe

config\ and data\ are created next to the EXE — portable.

With the Linux and Windows binaries, config/ and data/ (settings, SQLite, GCode store) live next to the program. Copy the whole folder = move the installation.

Python directly:

pip install -r bridge/requirements.txt
python bridge/kobrax_moonraker_bridge.py

3. Set up the printer

Open the Web UI: http://BRIDGE-IP:7125

On first start the Printers tab shows "+ Add printer" — just enter the printer's IP address, the rest (username, password, device ID) is fetched from the printer and decrypted automatically. Done.

More than one printer? Just click "+ Add printer" again — each gets its own port (7125, 7126, …) and is selectable from the header dropdown.

4. Connect OrcaSlicer

Printer → Connection type Moonraker → Host: http://BRIDGE-IP:7125

⚠️ Connection type must be Moonraker (not "Bambu" or "Klipper"). Enter the full URL including http:// and port :7125 in the host field.

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📺 Video Tutorial

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🔧 Getting credentials manually

Normally not needed — "+ Add printer" does this automatically. If you do need it:

fetch_credentials --ip 192.168.x.x --write-config

Fetches the credentials directly from the printer via HTTP and writes them to config/config.ini. Only the printer IP is required, no slicer.

Alternatively (if the IP is unknown): open AnycubicSlicerNext, connect the printer, then run extract_credentials → outputs username, password, device ID and the printer IP.

Downloads: Releases → fetch_credentials / extract_credentials (Linux & Windows)

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⚙️ Useful commands

docker compose logs -f       # show logs
docker compose down          # stop the bridge
docker compose up -d --build # rebuild & start (after an update)

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🩹 Troubleshooting

"Wrong MQTT credentials" on start

• Re-add the printer via "+ Add printer", or run fetch_credentials --ip <ip> --write-config and restart the bridge
• Enter only the IP address, no port (✗ 192.168.1.102:9883 → ✓ 192.168.1.102)

Printer not found / no LAN mode

• On the printer display: Settings → Enable LAN mode
• Printer and bridge must be on the same network

Docker: Permission denied

sudo usermod -aG docker $USER   # then log out and back in

Upgrading from 0.9.1 or earlier

Starting with 0.9.2, KX-Bridge stores settings in config/config.ini instead of .env. Migration runs automatically on first start after the upgrade — no action required.

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🔒 Security

• The bridge is reachable on the local network at http://<host-IP>:7125 — do not expose it to the internet
• config/config.ini contains printer credentials — do not share publicly
• The credentials do not grant access to Anycubic cloud services

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📄 License

Interoperability research under §69e UrhG — private, non-commercial use only.

If KX-Bridge helps you, the project appreciates your support: