{
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      }
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      }
    },
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      "name": "horizontal_cylinder_rotated",
      "op": {
        "type": "Rotate",
        "child": 2,
        "angles": {
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          "y": 90,
          "z": 0
        }
      }
    },
    "4": {
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      "name": "horizontal_cylinder_positioned",
      "op": {
        "type": "Translate",
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        "offset": {
          "x": -20,
          "y": 0,
          "z": 20
        }
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    },
    "5": {
      "id": 5,
      "name": "cross_shaft",
      "op": {
        "type": "Union",
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        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
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  ]
}