{
 "object": "shaft-adapter-5-to-8mm",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "shaft-adapter-5-to-8",
   "step": "/files/hardware/stirling-linkage-fittings/shaft-adapter-5-to-8.step",
   "stl": "/files/hardware/stirling-linkage-fittings/shaft-adapter-5-to-8.stl",
   "note": "Ø5 → Ø8 shaft adapter × 20 with two M3 grubs: puts a Ø8-bore flywheel (Ø80–150) on a Ø5 crankshaft"
  }
 ]
}