{
  "schema_version": "1.0",
  "example": true,
  "source": "/examples/calibration-cube-20mm.stl",
  "file_sha256": "c56aabb77d7665cff2d7f3636c3143bc6ae0641284696166bfa180e75a50a097",
  "description": "Public calibration fixture measured by the same geometry preflight used for owned uploads. No supplier price, order, or printability certification is implied.",
  "preflight": {
    "schema_version": 1,
    "format": "stl",
    "units": "mm",
    "unit_scale_to_mm": 1,
    "file_bytes": 1511,
    "certifies_printability": false,
    "limitations": [
      "This report does not certify printability, dimensional accuracy, strength, safety, or suitability for an application.",
      "No self-intersection, wall-thickness, support, clearance, material, printer, or manufacturing-tolerance analysis is performed.",
      "STL vertices are matched exactly; cracks are not welded and coordinates are never repaired or rescaled automatically.",
      "Stored STL facet normals are checked for finite values but vertex winding determines orientation and volume."
    ],
    "warnings": [],
    "topology": {
      "checked": true,
      "method": "exact_coordinate_edge_incidence",
      "vertex_count": 8,
      "edge_count": 18,
      "boundary_edge_count": 0,
      "non_manifold_edge_count": 0,
      "inconsistent_winding_edge_count": 0,
      "duplicate_triangle_count": 0,
      "connected_component_count": 1,
      "watertight_edge_check": true,
      "edge_manifold": true,
      "orientation_consistent": true,
      "vertex_manifold_checked": false,
      "self_intersections_checked": false
    },
    "volume": {
      "checked": true,
      "signed_mm3": 8000,
      "enclosed_estimate_mm3": 8000,
      "interpretation": "positive_winding_estimate",
      "is_printability_proof": false
    },
    "status": "mesh_checked",
    "bounds_checked": true,
    "encoding": "ascii",
    "bounds_mm": {
      "min": [
        0,
        0,
        0
      ],
      "max": [
        20,
        20,
        20
      ]
    },
    "extents_mm": [
      20,
      20,
      20
    ],
    "triangle_count": 12,
    "degenerate_triangle_count": 0
  }
}