Anycubic
Anycubic Kobra 3 series printers require Rinkhals — a custom firmware overlay that adds a standard Moonraker API. Once Rinkhals is installed, Bridge connects using the built-in Klipper / Moonraker adapter.
Supported Models
- Kobra 3
- Kobra 3 V2
- Kobra 3 Max
- Kobra S1
Why Rinkhals?
Anycubic printers run a custom Go-based Klipper reimplementation ("GoKlipper") that doesn't expose a standard local API. Rinkhals is a non-destructive overlay that adds Moonraker API support while preserving the stock Anycubic firmware. Your printer's touchscreen and all Anycubic features continue to work normally.
Prerequisites
Install Rinkhals
- Visit the Rinkhals GitHub page
- Follow the installation instructions for your printer model
- After installation, Rinkhals runs alongside the stock firmware
- Verify Rinkhals is working by visiting
http://<printer-ip>in your browser — you should see the Mainsail web interface
Rinkhals adds:
- Moonraker API on port 7125
- Mainsail web UI on port 80 / 4409
- Fluidd web UI on port 4408
- SSH access on port 22
What You Need
| Field | Where to Find It |
|---|---|
| IP Address | Printer touchscreen: Settings > Network > IP Address |
| Rinkhals installed | Verify by visiting http://<printer-ip> in your browser |
Setup Steps
- Install Rinkhals on your Anycubic printer (one-time setup)
- In Bridge, click Add Printer
- Set Platform to
Klipper / Moonraker(not Anycubic — Rinkhals exposes a standard Moonraker API) - Enter the IP Address
- Set Port to
7125(this is the default for Rinkhals) - Click Save
Connection Details
| Setting | Value |
|---|---|
| Protocol | Moonraker WebSocket + REST API |
| Default Port | 7125 |
| Authentication | None required |
| Firmware | Rinkhals overlay on stock Kobra OS |
Troubleshooting
- Can't connect on port 7125? Make sure Rinkhals is installed and running. SSH into the printer and check the Rinkhals service status.
- Print starts from Mainsail but doesn't show on touchscreen? Rinkhals routes prints through the Anycubic MQTT system so they appear on the touchscreen. Make sure you're using a recent version of Rinkhals.
- Want to remove Rinkhals? Rinkhals is non-destructive. Follow the uninstall instructions on the Rinkhals GitHub page to restore the stock firmware completely.