{
 "object": "linear-alternator-back-iron-sleeve",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "alt-back-iron-sleeve",
   "step": "/files/hardware/linear-alternator-kit/alt-back-iron-sleeve.step",
   "stl": "/files/hardware/linear-alternator-kit/alt-back-iron-sleeve.stl",
   "note": "back-iron sleeve Ø60.5 × Ø52.5 × 30: closes the magnet flux outside the coils; the bobbin slides in, the sleeve sits in the housing"
  }
 ]
}