{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Base Cylinder",
      "op": {"type":"Cylinder", "radius":20, "height":10, "segments":32}
    },
    "2": {
      "id": 2,
      "name": "Top Cylinder",
      "op": {"type":"Translate", "child":3, "offset":{"x":0,"y":0,"z":10}}
    },
    "3": {
      "id": 3,
      "name": "Top Cylinder",
      "op": {"type":"Cylinder", "radius":10, "height":15, "segments":32}
    },
    "4": {
      "id": 4,
      "name": "Stepped Shaft",
      "op": {"type":"Union", "left":1, "right":2}
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 4, "material": "default" }]
}