GoKawiilSolidCraft brings parametric CAD modeling built in Rust, with AI-agent MCP interface
SolidCraft is an open-source parametric 3D CAD application written entirely in Rust, offering sketching, constraints, and a feature timeline so models rebuild automatically when dimensions change. It runs on desktop or in-browser and includes a built-in MCP server that lets AI agents perform modeling operations directly. The project reports 75 of 76 public reference parts matching analytic or FreeCAD-computed geometry checks, with one known bug tracked.
GoKawiil's interpretation of the reporting above, not reported fact.
Pairing CAD with an MCP interface suggests the developers see AI-agent-driven design as a near-term use case, potentially letting automated systems generate or modify parametric parts without manual CAD input. The project's early status and limited validation set indicate it is aimed at simple parts for now rather than production-grade engineering work, and builds remain unsigned, requiring manual security overrides to install.
- SolidCraft is a Rust-based, open-source parametric CAD tool supporting desktop and browser use.
- It includes an MCP server enabling AI agents to perform 3D modeling tasks programmatically.
- The software is early-stage, with 75 of 76 reference parts passing geometric validation and installers currently unsigned.
Raspberry Pi 4 Model B — The article literally uses a Raspberry Pi 4 case design as its demo project, so having an actual Pi 4 board on hand lets you measure, design, and 3D print your own enclosure using SolidCraft. It's a great way to follow along with the parametric CAD workflow shown in the demo video and test your printed case for real fit.
See Raspberry Pi 4 Model B on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: github.com, 2026-10-13
Published there as: “Show HN: SolidCraft – Open-Source Parametric CAD in Rust (With MCP Support)”
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