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Firmware Internals & Research

This section is dedicated to the technical details, reverse engineering, and low-level workings of the Anycubic custom software stack (GoKlipper) as well as the underlying embedded Linux system on the Kobra series printers.

It serves as a resource for developers, contributors, and curious users who want to understand what makes these printers tick under the hood.

Topics Covered

  • GoKlipper: Deep dive into Anycubic's proprietary Klipper replacement written in Go.
  • File Structure: Overview of the printer's internal filesystem and Rinkhals integration paths.
  • Binary Decompilation & Patching: Methods and findings for analyzing and modifying closed-source Anycubic binaries.
  • IPC Commands: Details on the Inter-Process Communication used by the system UI and services.
  • MQTT Protocol: How the printer communicates with Anycubic's cloud services and local broker configurations.
  • Vanilla Klipper: Current status and research progress towards replacing GoKlipper with standard, open-source Klipper.

If you are looking to contribute to the development of Rinkhals or modify the core functionality of your printer, these documents provide the essential foundation.