{
 "slug": "coil-spring",
 "triangles": 19344,
 "texture_px": 2048,
 "triangles_light": null,
 "texture_px_light": null,
 "files": {
  "glb": {
   "name": "coil-spring.glb",
   "bytes": 1326840
  },
  "blend": {
   "name": "coil-spring.blend",
   "bytes": 1240190
  },
  "fbx": {
   "name": "coil-spring.fbx",
   "bytes": 2527084
  },
  "obj": {
   "name": "coil-spring-obj.zip",
   "bytes": 1386978
  },
  "usdz": {
   "name": "coil-spring.usdz",
   "bytes": 2152171
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "0.210 x 0.124 x 0.127",
  "triangles": 19344,
  "textures": "PBR 2048px: base color, roughness, metallic, normal (baked)",
  "generator": "Created by grab3d",
  "created": "2026-10-26",
  "real_size": "compression spring 60 x 115 mm and extension spring 22 mm x 92 mm on a 21 x 12 cm display plate",
  "notes": "Helical compression spring made as a real helix from 7 mm spring steel wire, 60 mm outside diameter, 8.5 total coils with one closed coil at each end and both ends ground flat, standing upright. Next to it a close wound brass extension spring (22 mm outside diameter, 2.8 mm wire) with a full German loop at each end, lying stable on its coils. No moving parts.",
  "set": "Cozy Mechanical Parts 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
 }
}