{
  "version": "0.1",
  "nodes": {
    "1": {"id": 1, "name": "plate_raw", "op": {"type": "Cube", "size": {"x": 60, "y": 60, "z": 12}}},
    "2": {"id": 2, "name": "plate", "op": {"type": "Translate", "child": 1, "offset": {"x": -30, "y": -30, "z": 0}}},

    "10": {"id": 10, "name": "hole1_through", "op": {"type": "Cylinder", "radius": 2, "height": 12, "segments": 32}},
    "11": {"id": 11, "name": "hole1_through_pos", "op": {"type": "Translate", "child": 10, "offset": {"x": 20, "y": 20, "z": 0}}},
    "12": {"id": 12, "name": "hole1_cbore", "op": {"type": "Cylinder", "radius": 4, "height": 4, "segments": 32}},
    "13": {"id": 13, "name": "hole1_cbore_pos", "op": {"type": "Translate", "child": 12, "offset": {"x": 20, "y": 20, "z": 8}}},
    "14": {"id": 14, "name": "hole1", "op": {"type": "Union", "left": 11, "right": 13}},

    "20": {"id": 20, "name": "hole2_through", "op": {"type": "Cylinder", "radius": 2, "height": 12, "segments": 32}},
    "21": {"id": 21, "name": "hole2_through_pos", "op": {"type": "Translate", "child": 20, "offset": {"x": -20, "y": 20, "z": 0}}},
    "22": {"id": 22, "name": "hole2_cbore", "op": {"type": "Cylinder", "radius": 4, "height": 4, "segments": 32}},
    "23": {"id": 23, "name": "hole2_cbore_pos", "op": {"type": "Translate", "child": 22, "offset": {"x": -20, "y": 20, "z": 8}}},
    "24": {"id": 24, "name": "hole2", "op": {"type": "Union", "left": 21, "right": 23}},

    "30": {"id": 30, "name": "hole3_through", "op": {"type": "Cylinder", "radius": 2, "height": 12, "segments": 32}},
    "31": {"id": 31, "name": "hole3_through_pos", "op": {"type": "Translate", "child": 30, "offset": {"x": -20, "y": -20, "z": 0}}},
    "32": {"id": 32, "name": "hole3_cbore", "op": {"type": "Cylinder", "radius": 4, "height": 4, "segments": 32}},
    "33": {"id": 33, "name": "hole3_cbore_pos", "op": {"type": "Translate", "child": 32, "offset": {"x": -20, "y": -20, "z": 8}}},
    "34": {"id": 34, "name": "hole3", "op": {"type": "Union", "left": 31, "right": 33}},

    "40": {"id": 40, "name": "hole4_through", "op": {"type": "Cylinder", "radius": 2, "height": 12, "segments": 32}},
    "41": {"id": 41, "name": "hole4_through_pos", "op": {"type": "Translate", "child": 40, "offset": {"x": 20, "y": -20, "z": 0}}},
    "42": {"id": 42, "name": "hole4_cbore", "op": {"type": "Cylinder", "radius": 4, "height": 4, "segments": 32}},
    "43": {"id": 43, "name": "hole4_cbore_pos", "op": {"type": "Translate", "child": 42, "offset": {"x": 20, "y": -20, "z": 8}}},
    "44": {"id": 44, "name": "hole4", "op": {"type": "Union", "left": 41, "right": 43}},

    "50": {"id": 50, "name": "holes_12", "op": {"type": "Union", "left": 14, "right": 24}},
    "51": {"id": 51, "name": "holes_34", "op": {"type": "Union", "left": 34, "right": 44}},
    "52": {"id": 52, "name": "all_holes", "op": {"type": "Union", "left": 50, "right": 51}},

    "100": {"id": 100, "name": "result", "op": {"type": "Difference", "left": 2, "right": 52}}
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 100, "material": "default"}]
}