62b49f9f89
* Boolean: a pin in a bore of its own size is clear of it, whatever its facets
A pin whose wall is in other faces than the bore's (turned from a profile: three
faces; the bore two) is faceted at other angles. Where one body's faces end on
the shared cylinder (the pin's wall through the end face of the tube, the pin's
end inside the bore) the facets cross by the facetings' error, so the sampled
shortcut doubted its own "apart" answer, every retry failed on the coincident
walls, and the result came back unverified after seconds: inspect.clearance
left such pairs unchecked ("could not be intersected there").
The shortcut now leaves out crossings that lie on a cylinder both bodies have
faces on (axes and radii within the kernel's same-surface tolerance, where both
faces run). A pin a hair off its hole's axis, or one pushed into a narrower
bore, is still not taken for apart.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Boolean: skip only the shared cylinder's own crossings, not a flat along it
The shortcut left out every crossing near a cylinder both bodies have faces
on, from any face: a pin through a D-bore whose flat is 0.022 mm inside it
came back as contact. Mesh::crosses_except now hands the predicate the two
triangles' faces, and only crossings between the faces on the shared
cylinder, or between one of them and an end face across its axis that keeps
to its body's side of the cylinder (within the facetings' error), are left
out. The D-bore's end face reaches into the cylinder to the flat, so the
pin's wall through it counts again; a flat, key or rib along the axis always
counts.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Boolean: a pin in a bore of its size is clear at every placement
The sampled shortcut's check that no facet has material under it on the
wrong side of the other body still caught the facetings of a shared
cylinder. A facet of a pin's end inside the bore (or of the bore part's
end face round the pin) with all three corners on the rim has its middle
just inside the cylinder. Where the other body's chords reach further in
at that angle, the point under it lies inside the other mesh, though the
bodies only touch. Which facets do so depends on the face splits and the
placement, so the same pair read as clear at one placement and as "not
verified" at another.
Such points are no evidence now when they lie on the shared cylinder,
under a facet of one of its end faces: the end faces and band the
crossing check already leaves out. A pin 0.02 mm larger is no shared
cylinder, and its overlap is still found.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-authored-by: bherbruck <brennen.herbruck@gmail.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. 9× playback. Full video, recorded with the demo script.
Download
- Windows: the installer, or
winget install bherbruck.SolidCraft. - 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 downloads aren't signed yet: on Windows choose More info, then Run anyway in SmartScreen; on macOS right-click SolidCraft and choose Open the first time. 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,
.solidcraftdesigns. - 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. 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.
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).