Ryan
5e0e168ae9
* claim: #8095 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Properties: moment of inertia, principal axes and first moments of a part or assembly (#8095) component.properties and occurrence.properties report each closed body's inertia tensor about its centre of mass, and in total the tensor about the total centre of mass (world axes, g·mm²), its principal moments and axes, the first moments, and with `about: [x, y, z]` the tensor about any point. The tensor comes from each body's welded export mesh, tessellated once per body, scaled to the measured mass and turned by each placement; bodies add by parallel axes. The maths is a new crates/geom inertia module. The Properties window shows the first moments, the tensor, the principal moments and axes, and the view marks the centre of mass with the principal axes while it is open. Inspect → Measure → Properties now opens that window (it ran the command and showed nothing). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Properties: Copy matrix, and the whole design's card titled just Properties (#8095) Copy matrix, under the tensor, puts it on the clipboard as three lines of tab-separated values at full precision, in the units shown. The card for the whole design is titled Properties; one opened on a component, placement or bodies keeps its name. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Properties: measure beside the window, so a large assembly doesn't freeze it (#8095) Properties ran on the window thread: 18 s on a 144-body design, with the window answering nothing meanwhile (#5203). In the desktop app the card now measures on a copy of the session on a worker, the way #4614 made agents' measures work, says "Measuring…" until the reply is in, and Close drops it. A quick measure still shows at once; headless, tests and the web measure in place. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
SolidCraft
An open-source parametric 3D CAD application built in pure Rust.
Sketch, constrain, and build solids with a parametric feature timeline. Change a dimension
and watch your model rebuild. Run it on your desktop, in your browser, or let AI agents
model through the built-in MCP server.
Website ·
Download ·
Try it in the browser ·
Documentation ·
A Raspberry Pi 4 case from an empty design: a sketch dimensioned with the board's parameters, extrude, fillet, shell, the rim rounded in one pick, an M2.5 standoff patterned on the 58 × 49 mm hole rectangle, port cut-outs, vent slots, "Pi 4" engraved in DejaVu Sans Bold and a PETG material defined in the design, with its mass in Properties, then height 24 → 32 mm in Parameters and it all rebuilds. 6× playback with the idle pauses cut. Full video, recorded with the demo script.
Download
- Windows: the installer.
- macOS: the disk image (Apple silicon and Intel).
- Linux: the AppImage, or
sudo snap install solidcraft(Snap Store). - Web: try it in your browser, no install.
ARM64 and 32-bit builds, portable zip, .deb, .rpm, Flatpak and the other packages are on the downloads page. The macOS app is signed with a Developer ID and notarized by Apple. The Windows downloads aren't signed yet: choose More info, then Run anyway in SmartScreen. On SolidCraft 0.11 to 0.14, download once by hand; see updating.
What works
Early but usable for simple parts: 75 of 76 public reference parts match their analytic or FreeCAD-computed volume, area, centre of mass and bounding box (oracle); the other is a tracked bug.
- Sketches and constraints: lines, arcs, splines, text and more, solved by our own constraint solver, with parameter-driven dimensions.
- Features: extrude, revolve, sweep, loft, fillet, chamfer, shell, draft, holes, threads, patterns, mirror, split and combine on an editable parametric timeline.
- Parameters and configurations with unit-aware expressions.
- Assemblies with joints, motion studies, contact sets, interference and mass properties.
- Sheet metal with flanges, hems, fold/unfold and flat patterns, and plastic enclosure features.
- Files: STEP, IGES, 3MF, STL, OBJ and glTF in and out where supported, URDF export,
.scdesigns (.solidcraftfiles from earlier releases still open). - Desktop app, browser app, headless CLI and MCP server, all running the same commands.
The full list is in docs/capabilities.md and docs/features.md; status and plans are in ROADMAP.md. See also what people built, 3D mouse support and the architecture.
Build from source
cargo run --release -p solidcraft -- --sample # desktop app with a sample part
cargo run --release -p solidcraft-cli -- commands # the command registry
cargo run --release -p solidcraft-cli -- run examples/bracket.json --out bracket.step
cargo xtask ci # fmt, clippy, tests, icons, assets, layers, wasm
More commands, the Windows cross-build and the browser build are in docs/building.md.
AI agents (MCP)
solidcraft-cli mcp is a Model Context Protocol server. Headless it
runs its own design session, or with --connect it drives the running app so you can watch.
Claude Code: claude mcp add solidcraft -- solidcraft-cli mcp. If a terminal doesn't find
solidcraft-cli (older Windows installers don't put it on PATH), give its full path (by default
"C:\Program Files\SolidCraft\solidcraft-cli.exe"). Tools, access rules and an example session:
docs/mcp.md.
Scripts
A script is a JSON list of the same commands the UI runs, executed with solidcraft-cli run.
Format and example: docs/scripts.md. Pages can also be driven through the
browser command API.
Contributing
Help is welcome. CONTRIBUTING.md covers how to build and test, the code map, the clean-room and licence rules, and where help is wanted most. Open work is in GitHub issues; chat is on Discord.
Sponsors
SolidCraft's continuous integration runs on Blacksmith, which sponsors its CI minutes.
Disclaimer
The files in this repository are provided as is, without warranty, liability or indemnity, and Tangency Labs and the contributors accept no responsibility for any harmful or unlawful use of them: read DISCLAIMER.md.
Licence
MIT OR Apache-2.0, at your option. Developed under the clean-room contribution rules; third-party code and assets retain their documented licences and attribution.
SolidCraft is independent. Behaviour is designed from public documentation, general CAD conventions and user feedback. Reference tests use analytic values and open-source tools. SolidCraft is not affiliated with, sponsored by or endorsed by Autodesk, Dassault Systèmes, PTC, Siemens or any other CAD vendor. Fusion, AutoCAD, Inventor, SolidWorks, Onshape, Creo, Blender and Tinkercad are trademarks of their respective owners, named only to describe compatibility (see NOTICE).