OneCAD-Simulation/README.md

FieldCraft

An open-source, clean-room CAE modeling application in pure Rust: geometry to analysis-ready finite element models, with robust tetrahedral and hexahedral meshing, solver decks for Abaqus, Nastran and LS-DYNA, and its own linear static and modal solver. Desktop, browser and AI agents drive the same commands.

Status: early. The workspace, quality gates, the FE model, the command engine and the geometry boundary (SolidCraft's kernel and tessellator) are in place; meshing is next. See ROADMAP.md.

An AI agent drives FieldCraft over MCP, each stage captioned with the tool it calls: it opens an I-beam, hex meshes it, defines the material, the clamp and a 1000 N tip load, solves, and shows the von Mises stress and the deformed shape (tip deflection 0.176 mm; beam theory with shear 0.177 mm). MP4 · regenerated by tools/demo-video.

Build

cargo xtask ci                                  # fmt, assets, licences, layers, clippy, tests, wasm
cargo xtask test --heavy                        # the heavy (ignored) tests and the doc tests
cargo run -p fieldcraft-cli -- commands         # every command and its parameters
cargo run -p fieldcraft-cli -- run script.json  # run a command script
cargo run -p fieldcraft-cli -- mcp              # MCP server on stdio for AI agents (docs/mcp.md)

Rust 1.95 or later, with the wasm32-unknown-unknown target for cargo xtask ci.

Documentation

• Architecture: crates, layers and the meshing pipeline
• Libraries and licences
• AI agents (MCP): claude mcp add fieldcraft -- /path/to/fieldcraft-cli mcp
• Control protocol: driving the desktop app
• Contributing and agent instructions

License

Dual-licensed under MIT or Apache-2.0, at your option. Notices are in NOTICE; third-party licences in THIRD-PARTY-LICENSES.txt.

FieldCraft is an independent project, not affiliated with, sponsored or endorsed by Dassault Systèmes, MSC Software, Siemens or Ansys. Abaqus, Nastran, MSC Nastran, Simcenter Nastran and LS-DYNA are trademarks of their owners and are named only to describe file compatibility.