Low-cost ROS 2 Jazzy CNC Plotter with LLM Agent & RViz Digital Twin
A $50 DIY machine translates 'draw a square' into physical motion using OpenAI's Agents SDK.
Deep Dive
Developer Yacin Hamdi built an open-source, low-cost CNC plotter that bridges AI agents with physical robotics. The system uses a Raspberry Pi running ROS 2 Jazzy, an OpenAI Agents SDK-based 'llm_commander' node, and a real-time RViz digital twin. Users give natural language commands (e.g., 'draw a square'), which the LLM agent parses into tool calls that generate G-code, driving salvaged CD-ROM stepper motors via an Arduino running GRBL firmware.
Why It Matters
It demonstrates a practical, low-cost blueprint for integrating LLM agents into physical robotic systems, moving beyond pre-programmed code.