{
  "version": "0.1",
  "nodes": {
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    "4": { "id": 4, "name": "Hole_-8_-8", "op": { "type": "Translate", "child": 3, "offset": { "x": -8, "y": -8, "z": 0 } } },
    "5": { "id": 5, "name": "Hole_0_-8", "op": { "type": "Translate", "child": 3, "offset": { "x": 0, "y": -8, "z": 0 } } },
    "6": { "id": 6, "name": "Hole_8_-8", "op": { "type": "Translate", "child": 3, "offset": { "x": 8, "y": -8, "z": 0 } } },
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    "12": { "id": 12, "name": "Hole_8_8", "op": { "type": "Translate", "child": 3, "offset": { "x": 8, "y": 8, "z": 0 } } },
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    "14": { "id": 14, "name": "HolesUnion_2", "op": { "type": "Union", "left": 13, "right": 6 } },
    "15": { "id": 15, "name": "HolesUnion_3", "op": { "type": "Union", "left": 14, "right": 7 } },
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    "17": { "id": 17, "name": "HolesUnion_5", "op": { "type": "Union", "left": 16, "right": 9 } },
    "18": { "id": 18, "name": "HolesUnion_6", "op": { "type": "Union", "left": 17, "right": 10 } },
    "19": { "id": 19, "name": "HolesUnion_7", "op": { "type": "Union", "left": 18, "right": 11 } },
    "20": { "id": 20, "name": "HolesUnion_8", "op": { "type": "Union", "left": 19, "right": 12 } },
    "21": { "id": 21, "name": "CubeWithHoles", "op": { "type": "Difference", "left": 2, "right": 20 } }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 21, "material": "default" }]
}