{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "BarA",
      "op": {
        "type": "Cube",
        "size": {"x": 100, "y": 20, "z": 10}
      }
    },
    "2": {
      "id": 2,
      "name": "BarA_translated",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {"x": -50, "y": -10, "z": 0}
      }
    },
    "3": {
      "id": 3,
      "name": "BarB",
      "op": {
        "type": "Cube",
        "size": {"x": 20, "y": 100, "z": 10}
      }
    },
    "4": {
      "id": 4,
      "name": "BarB_translated",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {"x": -10, "y": -50, "z": 0}
      }
    },
    "5": {
      "id": 5,
      "name": "CrossFrame",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
    }
  ]
}