Parametric CAD and mesh geometry indexed by primary domain, spanning engineering, biology, culture, and twenty other domains, each record carrying source type and license basis.
The top entries by volume, with the long tail collapsed into a single figure.
Primary domain
Every field a delivered record carries, its type, and an example value.
| Field | Type | Description | Example |
|---|---|---|---|
| primary_domain | string | Domain assigned by the source catalog taxonomy. | Architectural Engineering |
| primary_category | string | Parent classification grouping related domains. | Engineering |
| dataset_count | integer | Records catalogued under this domain. | 378772 |
| distribution_pct | number | Share of total records this domain represents. | 28.79 |
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| Field | Type | Description | Example |
|---|---|---|---|
| geometry_format | string | Native parametric interchange format. | STEP (.stp) |
| mesh_format | string | Tessellated representation delivered alongside the parametric file. | glTF (.glb) |
| topology | string | Solid, surface, or mesh-only geometry. | solid |
| source_type | string | Native CAD authoring, photogrammetry scan, or procedural generation. | native CAD |
| unit_system | string | Unit system declared in the file header. | metric |
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Real rows, exactly as delivered. Copy them and check them.
[ { "primary_domain": "Architectural Engineering", "primary_category": "Engineering", "dataset_count": 378772, "distribution_pct": 28.79 }]Sources, acquisition method, and the basis on which the material is held.
The same domain breakdown as above, at full size - the one animated meter on the site.
Primary domain
Every record passes these stages in order. Each stage states what it removes.
Confirms the file parses cleanly in its declared format and is not corrupt or empty.
Files that fail to parse.
Assigns primary domain and category via the source catalog taxonomy.
Records the taxonomy cannot place.
Compares geometry and mesh hashes for near-duplicate assets.
Redundant near-duplicate assets.
Flags non-manifold or self-intersecting geometry.
Assets with unrepaired topology defects.
Confirms a redistribution basis before inclusion.
Assets without a confirmed rights basis.
Named benchmarks checked for overlap, and the method used to check them.
Formats, access mechanisms, and how revisions are published.
What this dataset does not cover. Read this before you evaluate it.
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