# ricosjp/truck

Truck is a Rust CAD Kernel.

Repository: https://github.com/ricosjp/truck
Canonical: https://ross.abutalabs.com/products/truck
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: cad, graphics, truck
Last push: 2026-08-24T10:27:37+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 2076, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1533, forks 105 (observed 2026-08-28T04:04:59.654207+00:00)

## What it is
Truck is an open-source CAD kernel written in Rust, providing geometric and topological data structures for shape processing such as B-splines, NURBS, and boundary representation (B-rep). It is organized as a collection of small, replaceable crates leveraging Rust and WebGPU for safe, high-performance geometry processing.

## Use cases
- build a CAD application in Rust
- model 3D shapes with NURBS and B-rep
- convert CAD geometry to polygon meshes
- create and manipulate solids, shells, faces, and wires
- render parametric curves and surfaces with WebGPU
- develop a next-generation open-source CAD kernel

## When to choose
- you need a Rust-native CAD kernel with memory safety
- you want modular crates for geometry, topology, and meshing
- you target WebGPU or cross-platform 3D geometry processing
- you prefer Apache-2.0 licensed CAD tooling

## When to avoid
- you need a full-featured commercial CAD package with GUI
- you require STEP/IGES file interoperability out of the box
- you need mature boolean operations and feature modeling comparable to OpenCascade

## Facets
- artifact type: library
- maturity: active
- function: graphics, simulation, sdk, math
- domain: graphics, computer-vision, developer-tools, cross-platform
- platform: rust, cross-platform, wasm
- tags: cad, cad-kernel, b-rep, nurbs, geometry, topology, mesh-processing, webgpu, 3d-modeling, gpu

## Member repositories
- ricosjp/truck (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:59.654207+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:16.268418+00:00, confidence not recorded.
  - readme: https://github.com/ricosjp/truck (fetched 2026-08-28T04:04:59.654207+00:00, sha eda2e9be964e)
- Data as of 2026-08-30T08:39:29.467469+00:00.