{
 "object": "fpse-fin-inserts",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "fpse-heater-insert-41.5x47.5",
   "step": "/files/hardware/fpse-fin-inserts/fpse-heater-insert-41.5x47.5.step",
   "stl": "/files/hardware/fpse-fin-inserts/fpse-heater-insert-41.5x47.5.stl",
   "note": "heater insert (optional): Ø41.5 / Ø47.5 × 68.05, 36 slots 1.5 × 2.5 deep in the OD, full length; on the liner's lower end, OD against the hot wall"
  },
  {
   "name": "fpse-cooler-insert-40x47.5",
   "step": "/files/hardware/fpse-fin-inserts/fpse-cooler-insert-40x47.5.step",
   "stl": "/files/hardware/fpse-fin-inserts/fpse-cooler-insert-40x47.5.stl",
   "note": "cooler insert (optional): Ø40 / Ø47.5 × 73.2, 36 slots 1.5 × 2.5 deep in the OD; pressed into the 3 in spool S3, its bore continues the displacer's bore"
  }
 ]
}