Parametric CAD in Rust: A Complete Hex Nut Design Case Study

This article demonstrates using Rust and the cadrum library to automate complex 3D CAD modeling, combining system-level performance with parametric design capabilities. By leveraging OpenCASCADE bindings in Rust, engineers can create ISO-compliant mechanical parts with the safety guarantees and build-time efficiency of a compiled language. The iterative approach—generating visual validation (PNG) and industry-standard STEP files at each step—shows how Rust can streamline the CAD workflow beyond traditional GUI-based tools.