SolidCraft: Open-Source Rust Parametric CAD Nears Fusion 360 With MCP AI Agent Support
philfung · x · 2026-10-25
SolidCraft, an open-source parametric CAD written in Rust, is being called the closest free alternative to Fusion 360 by a long-time Fusion 360 user.
- Core features: constrained sketching, extrude/revolve, editable feature history, named parameters (board width, wall thickness, enclosure height), and STEP/mesh import-export.
- Tech highlights: a Rust geometry kernel, intuitive UI, desktop builds (Windows/macOS/Linux/FreeBSD) plus a browser version, currently at v0.12.0.
- AI agents: via MCP, a compatible AI agent can run modeling commands, measure geometry, change parameters, and export files; AI is optional.
- Gaps: simulation and other features are still missing, but it's enough for most hobbyists.
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