MCP 3D Printer Server

What is MCP 3D Printer Server?

MCP 3D Printer Server is a Model Context Protocol server that connects MCP clients (like Claude) with 3D printer management systems via their APIs. It supports OctoPrint, Klipper (Moonraker), Duet, Repetier, Bambu Labs, Prusa Connect, and Creality/Ender printers, providing tools for status monitoring, file management, print control, and STL manipulation.

How to use MCP 3D Printer Server?

Install globally via npm (npm install -g mcp-3d-printer-server) or from source, then configure a .env file with API_KEY, PRINTER_HOST, PRINTER_PORT, and PRINTER_TYPE. Set Bambu-specific variables as needed. Run the server and it exposes MCP tools and resources for the LLM to call.

Key features of MCP 3D Printer Server

• Get printer status (temperatures, progress) and list/upload files
• Start, cancel, and monitor print jobs; set temperatures
• Advanced STL manipulation: extend base, scale, rotate, translate, modify sections
• Generate multi-angle SVG visualizations of STL files
• Slice STL files to G-code; print .3mf files directly on Bambu printers
• End-to-end workflow from STL modification to printing
• Support for FULU OrcaSlicer-bambulab and Bambu preset files as resources

Use cases of MCP 3D Printer Server

• Automate print submission and monitoring from an AI assistant
• Modify STL models (e.g., add rafts, resize) before slicing and printing
• Diagnose printer status and temperatures, then adjust settings remotely
• Slice and print Bambu Lab projects using .3mf files with MQTT
• Integrate 3D printing workflows into larger automated pipelines