{
 "slug": "manhole-cover",
 "triangles": 15094,
 "texture_px": 2048,
 "triangles_light": null,
 "texture_px_light": null,
 "files": {
  "glb": {
   "name": "manhole-cover.glb",
   "bytes": 2175408
  },
  "blend": {
   "name": "manhole-cover.blend",
   "bytes": 1904018
  },
  "fbx": {
   "name": "manhole-cover.fbx",
   "bytes": 3391036
  },
  "obj": {
   "name": "manhole-cover-obj.zip",
   "bytes": 2658672
  },
  "usdz": {
   "name": "manhole-cover.usdz",
   "bytes": 3440113
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "0.800 x 0.800 x 0.050",
  "triangles": 15094,
  "textures": "PBR 2048px: base color, roughness, metallic, normal (baked)",
  "generator": "Created by grab3d",
  "created": "2026-09-26",
  "real_size": "600 mm cover in 800 x 800 mm cast frame, 50 mm high (flush install)",
  "notes": "raised diamond pattern as real geometry, plain rim and centre boss, two lifting pockets, 5 mm joint to the frame; dark cast iron with polished high points, road dust in the grooves and light rust; no lettering",
  "set": "Urban Street Kit"
 },
 "origin": {
  "method": "procedural",
  "detail": "Built procedurally with Blender scripts. The scripts were written with the help of an AI coding assistant. No generative AI model produced the geometry or textures directly.",
  "ai_content": false,
  "ai_assisted_code": true
 }
}