Show HN: Loböle, open-source parametric CAD that AI agents can drive

Category: devtools

Tags: parametric-cad, opencascade, vulkan, ai-agents, mcp-server, fem-simulation, cam, cpp

Score: 8.0/10 (Innovation: 8, Technical: 9, Documentation: 8, Utility: 7)

Loböle is an open-source parametric CAD system built on OpenCASCADE with a Vulkan viewport, exposing a unified command layer accessible from its GUI, Python scripts, and AI agents via JSON-RPC and MCP. It covers sketches, assemblies, FEM simulation, CAM toolpaths, git-backed versioning, and multi-format interchange, and it ships impressive generator-built models like an OM615 diesel and an automatic watch. The agent-driveable architecture is a genuinely novel angle for desktop CAD.

Target audience: mechanical engineers, CAD tool developers, backend devs integrating AI agents with geometry, hobbyist machinists

Repository: https://github.com/eliasaronson/lobole · C++ · AGPL-3.0

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