121 lines
7.0 KiB
Markdown
121 lines
7.0 KiB
Markdown
# SolveCraft
|
||
|
||
**Parametric 3D CAD; an open-source, [clean-room](CLAUDE.md) reimplementation of Autodesk
|
||
Fusion 360, 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. Part of the storytold "craft" family.
|
||
|
||
|
||
|
||
*An agent builds an electronics enclosure over MCP: sketches on faces, shell, a port cut, one screw boss patterned to four, then width 80 → 100 mm in the Parameters dialog and the timeline rebuilds. 3× speed; [full video](https://github.com/bherbruck/solvecraft/releases/download/v0.1.0/enclosure-demo-v3.mp4), script in [examples/demo](examples/demo).*
|
||
|
||
**Documentation:** the [SolveCraft book](https://bherbruck.github.io/solvecraft/) (user guide,
|
||
developer guide and command reference; sources in [docs/book](docs/book)), and the
|
||
[web app](https://bherbruck.github.io/solvecraft/app/) to try it in the browser.
|
||
|
||
**Status: early but usable for simple parts.** 76 of 76 reference parts built in Fusion
|
||
rebuild in SolveCraft with the same volume, area and topology ([docs/oracle.md](docs/oracle.md));
|
||
command parity with Fusion's Design workspace is tracked in [docs/parity.md](docs/parity.md).
|
||
Open work and known bugs are in [GitHub issues](https://github.com/bherbruck/solvecraft/issues),
|
||
and help is welcome: see [CONTRIBUTING.md](CONTRIBUTING.md).
|
||
|
||
## What works
|
||
|
||
- **Sketches** on the origin planes, offset planes or planar faces: lines, rectangles (2-point,
|
||
3-point, centre), circles (centre, 2-point, 3-point), arcs (3-point, centre), polygons, slots
|
||
and points; construction geometry.
|
||
- **Constraints and dimensions** solved by our own solver (damped Gauss–Newton with
|
||
degree-of-freedom analysis): coincident, horizontal/vertical, parallel, perpendicular, tangent,
|
||
equal, concentric, collinear, midpoint, symmetry, fix; linear, aligned, horizontal, vertical,
|
||
radius, diameter and angle dimensions driven by parameters. Over-constraining edits are
|
||
rejected; fully constrained geometry turns black.
|
||
- **Profiles** found automatically, including regions split by lines and holes inside outlines.
|
||
- **Features** on a parametric timeline: extrude (one side, flipped, symmetric, two-sided, start
|
||
offset; new body, join, cut, intersect), revolve, fillet and chamfer (straight convex edges),
|
||
box, cylinder, sphere, torus, combine, move. The timeline rebuilds incrementally from the first
|
||
changed feature; it can be rolled back, and features can be suppressed, renamed, edited and
|
||
deleted.
|
||
- **Parameters** with unit-aware expressions (`2 * width + 5 mm`, `angle / 2`).
|
||
- **Files**: designs as JSON (`.solvecraft`), export to STEP (AP242 with body names, colours and
|
||
components as assemblies; revolved faces as native planes, cylinders, cones, spheres and tori),
|
||
IGES 5.3 (manifold solid B-reps with names and colours), 3MF, STL (binary/ASCII) and OBJ;
|
||
3MF, STL and OBJ import as mesh bodies (they render, measure, move and export; solid features
|
||
need B-rep bodies);
|
||
STEP import (AP203/AP214/AP242 solids, assemblies, units, names, colours) and IGES import
|
||
(manifold solid B-reps, or trimmed and bounded surfaces sewn into solids) as a base feature
|
||
that later features build on — open a `.step`/`.stp`/`.igs`/`.iges` file, insert one into a
|
||
design, or drop it on the window ([docs/step-import.md](docs/step-import.md)).
|
||
- **Desktop app** (egui + wgpu): toolbar with workspace tabs, browser, timeline, 3D viewport with
|
||
view cube and navigation bar, sketch tools, feature dialogs, command palette, and a JSON-lines
|
||
control channel so agents and tests can drive it.
|
||
- **Headless CLI** `solvecraft-cli`: run command scripts, measure (volume, area, centre of mass,
|
||
face/edge/vertex counts), export, render PNG snapshots, replay Fusion oracle recipes.
|
||
- **MCP server** `solvecraft-cli mcp`: AI agents model, measure and look at parts headless or
|
||
in the running app (see below).
|
||
|
||
## Build and run
|
||
|
||
```sh
|
||
cargo run --release -p solvecraft -- --sample # desktop app with a sample part
|
||
cargo run --release -p solvecraft-cli -- commands # the command registry
|
||
cargo run --release -p solvecraft-cli -- run examples/bracket.json --out bracket.step
|
||
cargo run --release -p solvecraft-cli -- snapshot examples/bracket.json --out bracket.png
|
||
cargo run --release -p solvecraft -- part.step # open a STEP file as a new design
|
||
cargo run --release -p solvecraft-cli -- eval part.step # measure an imported STEP file
|
||
cargo xtask ci # fmt, clippy, tests, assets, layers, wasm
|
||
```
|
||
|
||
Windows builds: `cargo xwin build --release --target x86_64-pc-windows-msvc -p solvecraft`.
|
||
|
||
In the browser: `cd apps/solvecraft-web && trunk build --release --public-url ./` (WebGPU, or
|
||
WebGL2 with `?webgl`; `?sample` opens the sample part).
|
||
|
||
## Scripts
|
||
|
||
A script is a JSON list of commands, the same ones the UI runs:
|
||
|
||
```json
|
||
{"commands": [
|
||
{"command": "sketch.create", "params": {"plane": "XY"}},
|
||
{"command": "sketch.rectangle.two_point", "params": {"p0": [0, 0], "p1": [40, 30]}},
|
||
{"command": "solid.extrude", "params": {"distance": 20}},
|
||
{"command": "solid.fillet", "params": {"edges": [[0, 0, 10]], "radius": 3}}
|
||
]}
|
||
```
|
||
|
||
## AI agents (MCP)
|
||
|
||
`solvecraft-cli mcp` is a [Model Context Protocol](https://modelcontextprotocol.io) server on
|
||
stdio. Headless it runs its own design session; with `--connect 127.0.0.1:PORT` it drives the app
|
||
started with `solvecraft --control PORT`, so you can watch the agent model. Tools:
|
||
`list_commands`, `execute`, `batch`, `inspect_design`, `measure`, `body_topology`,
|
||
`set_parameter`, `screenshot` (returns the image), `export`, `undo`, `redo`, `new_design`, `open`,
|
||
`save`. Claude Code: `claude mcp add solvecraft -- solvecraft-cli mcp`. Details, client
|
||
configuration and an example session: [docs/mcp.md](docs/mcp.md).
|
||
|
||
## Architecture
|
||
|
||
<!-- ANCHOR: architecture -->
|
||
| Layer | Crates | Role |
|
||
|---|---|---|
|
||
| L0 | `geom` | vectors, planes, profiles, meshes and their measures |
|
||
| L1 | `sketch`, `kernel`, `render` | constraint solver and profiles; the B-rep kernel boundary (truck); view math and CPU rasterizer |
|
||
| L2 | `doc` | parameters, expressions, the feature timeline and its incremental evaluation |
|
||
| L3 | `io` | design files, STL/OBJ/STEP/3MF export, STEP and 3MF/STL import features |
|
||
| L4 | `engine` | the session and the command registry (everything is a command) |
|
||
| L5 | `ui-egui`, `mcp` | the swappable desktop front end; the MCP server (headless or bridged to the app) |
|
||
| apps | `solvecraft`, `solvecraft-cli` | desktop app, headless CLI |
|
||
<!-- ANCHOR_END: architecture -->
|
||
|
||
## Contributing
|
||
|
||
See [CONTRIBUTING.md](CONTRIBUTING.md): how to build and test, the code map, the clean-room
|
||
and licence rules, and where help is wanted most.
|
||
|
||
## Licence
|
||
|
||
MIT OR Apache-2.0, at your option. SolveCraft is not affiliated with Autodesk; Fusion is a
|
||
trademark of Autodesk, Inc.
|