{
 "slug": "piston",
 "triangles": 6076,
 "texture_px": 2048,
 "triangles_light": null,
 "texture_px_light": null,
 "files": {
  "glb": {
   "name": "piston.glb",
   "bytes": 707052
  },
  "blend": {
   "name": "piston.blend",
   "bytes": 591973
  },
  "fbx": {
   "name": "piston.fbx",
   "bytes": 1184508
  },
  "obj": {
   "name": "piston-obj.zip",
   "bytes": 692574
  },
  "usdz": {
   "name": "piston.usdz",
   "bytes": 1140199
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "0.189 x 0.079 x 0.087",
  "triangles": 6076,
  "textures": "PBR 2048px: base color, roughness, metallic, normal (baked)",
  "generator": "Created by grab3d",
  "created": "2026-10-19",
  "real_size": "car engine piston with connecting rod, approx. 18 cm long, 76 mm bore",
  "notes": "aluminium piston with slightly domed crown and three ring grooves with steel rings, polished wrist pin across the pin bosses, forged steel connecting rod with I-beam shank, big end with copper bearing shell, bolt bosses and nuts; lies in a stable rest position on the piston skirt with the rod resting on its big end; crown faces +X, pin side faces -Y; no moving parts; no text",
  "set": "Cozy Car Parts & Garage 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
 }
}