<p align="center"><img src="knlogo.png" alt="KX-Bridge Logo" width="180"/></p>

# KX-Bridge – Anycubic Kobra X

**Version:** 0.9.4

Control your **Anycubic Kobra X** with OrcaSlicer — no Klipper, no Raspberry Pi.  
KX-Bridge is a Moonraker-compatible bridge that communicates directly with the printer.

---

## Quick Start in 3 Steps

### Step 1 – Prepare the printer

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

### Step 2 – Get credentials

The MQTT credentials are printer-specific. Here's how to get them:

1. Open **AnycubicSlicerNext** and connect the printer (wait until status is shown)
2. Run **`extract_credentials.exe`** (Windows) or **`extract_credentials`** (Linux) — outputs Username, Password, Device ID and printer IP
3. Note / copy the values

> **Download:** [gitea.it-drui.de/viewit/KX-Bridge-Release/releases](https://gitea.it-drui.de/viewit/KX-Bridge-Release/releases) → `extract_credentials.exe` (Windows) / `extract_credentials` (Linux) in the release assets

### Step 3 – Start the bridge

```bash
./start.sh
```

The script builds the Docker image automatically on first run.

**Open Web-UI:** `http://BRIDGE-IP:7125`  
→ The ⚙ menu opens automatically on first start  
→ Enter credentials from Step 2 → **Save & Restart**

**Connect OrcaSlicer:**  
Printer → Connection type **Moonraker** → Host: `http://BRIDGE-IP:7125`

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

---

## ⚠️ Upgrading from 0.9.1 or earlier

Starting with **0.9.2**, KX-Bridge stores settings in `config/config.ini` instead of `.env`.

**Migration is automatic** — no manual action required:
- On first start after upgrade, the bridge reads your existing `.env` and creates `config/config.ini` automatically
- Settings now survive `docker-compose restart` and future updates
- The `.env` file stays mounted read-only as a migration source — you can keep it in place
- If you want to create a `config.ini` manually: copy `config/config.ini.example`

---

## What's supported?

| Feature | Details |
|---------|---------|
| Printer status | Temperature, progress, state, remaining time |
| Print control | Start, pause, resume, cancel |
| Temperature control | Nozzle and bed during print |
| Print speed | Silent / Normal / Sport |
| AMS filament change | Load / unload filament |
| Light & fan | Print light and fan speed |
| Web-UI | Dashboard, motion control, camera view |
| Self-update | Install new versions directly in the browser |
| OrcaSlicer | Moonraker protocol (HTTP + WebSocket) |

---

## Alternatives to Docker

**Linux binary** (no Docker needed):
```bash
chmod +x kx-bridge
./kx-bridge
```

**Python directly:**
```bash
pip install aiohttp
python bridge/kobrax_moonraker_bridge.py
```

Web-UI available at `http://localhost:7125` — the ⚙ menu guides through initial setup.

---

## Useful commands

```bash
# Show logs
docker-compose logs -f

# Stop bridge
docker-compose down

# Restart bridge (after update)
./start.sh
```

---

## Troubleshooting

**"Wrong MQTT credentials"** on start:
- Restart AnycubicSlicerNext, reconnect the printer, run `extract_credentials` again
- 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:**
```bash
sudo usermod -aG docker $USER  # then log out and back in
```

---

## Security

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

---

## License

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