{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "plate_raw", "op": {"type":"Cube", "size":{"x":50,"y":30,"z":10}} },
    "2": { "id": 2, "name": "plate", "op": {"type":"Translate", "child":1, "offset":{"x":-25,"y":-15,"z":0}} },
    "3": { "id": 3, "name": "hole_proto", "op": {"type":"Cylinder", "radius":1.5, "height":12, "segments":32} },
    "4": { "id": 4, "name": "hole1", "op": {"type":"Translate", "child":3, "offset":{"x":-20,"y":-10,"z":-1}} },
    "5": { "id": 5, "name": "hole2", "op": {"type":"Translate", "child":3, "offset":{"x":20,"y":-10,"z":-1}} },
    "6": { "id": 6, "name": "hole3", "op": {"type":"Translate", "child":3, "offset":{"x":-20,"y":10,"z":-1}} },
    "7": { "id": 7, "name": "hole4", "op": {"type":"Translate", "child":3, "offset":{"x":20,"y":10,"z":-1}} },
    "8": { "id": 8, "name": "holes12", "op": {"type":"Union", "left":4, "right":5} },
    "9": { "id": 9, "name": "holes123", "op": {"type":"Union", "left":8, "right":6} },
    "10": { "id": 10, "name": "holes_all", "op": {"type":"Union", "left":9, "right":7} },
    "11": { "id": 11, "name": "plate_drilled", "op": {"type":"Difference", "left":2, "right":10} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 11, "material": "default" }]
}