{
 "object": "gas-spring-piston",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "gas-spring-piston-15x15",
   "step": "/files/hardware/free-piston-core/gas-spring-piston-15x15.step",
   "stl": "/files/hardware/free-piston-core/gas-spring-piston-15x15.stl",
   "note": "gas-spring piston Ø15 (= the Ø15 bounce-space bore; clearance-seal running fit) × 15, Ø5 rod bore"
  },
  {
   "name": "gas-spring-piston-20x20",
   "step": "/files/hardware/free-piston-core/gas-spring-piston-20x20.step",
   "stl": "/files/hardware/free-piston-core/gas-spring-piston-20x20.stl",
   "note": "gas-spring piston Ø20 (= the Ø20 bounce-space bore; clearance-seal running fit) × 20, Ø5 rod bore"
  }
 ]
}