{
  "version": "0.1",
  "nodes": {
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    "2":  {"id": 2,  "name": "oct_rot",       "op": {"type":"Rotate","child":1,"angles":{"x":0,"y":0,"z":22.5}}},
    "3":  {"id": 3,  "name": "hole0_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "4":  {"id": 4,  "name": "hole0",         "op": {"type":"Translate","child":3,"offset":{"x":15,"y":0,"z":-1}}},
    "5":  {"id": 5,  "name": "hole1_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "6":  {"id": 6,  "name": "hole1",         "op": {"type":"Translate","child":5,"offset":{"x":10.6066,"y":10.6066,"z":-1}}},
    "7":  {"id": 7,  "name": "hole2_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "8":  {"id": 8,  "name": "hole2",         "op": {"type":"Translate","child":7,"offset":{"x":0,"y":15,"z":-1}}},
    "9":  {"id": 9,  "name": "hole3_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "10": {"id": 10, "name": "hole3",         "op": {"type":"Translate","child":9,"offset":{"x":-10.6066,"y":10.6066,"z":-1}}},
    "11": {"id": 11, "name": "hole4_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "12": {"id": 12, "name": "hole4",         "op": {"type":"Translate","child":11,"offset":{"x":-15,"y":0,"z":-1}}},
    "13": {"id": 13, "name": "hole5_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "14": {"id": 14, "name": "hole5",         "op": {"type":"Translate","child":13,"offset":{"x":-10.6066,"y":-10.6066,"z":-1}}},
    "15": {"id": 15, "name": "hole6_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "16": {"id": 16, "name": "hole6",         "op": {"type":"Translate","child":15,"offset":{"x":0,"y":-15,"z":-1}}},
    "17": {"id": 17, "name": "hole7_cyl",     "op": {"type":"Cylinder","radius":2.5,"height":10,"segments":32}},
    "18": {"id": 18, "name": "hole7",         "op": {"type":"Translate","child":17,"offset":{"x":10.6066,"y":-10.6066,"z":-1}}},
    "19": {"id": 19, "name": "diff1",         "op": {"type":"Difference","left":2,"right":4}},
    "20": {"id": 20, "name": "diff2",         "op": {"type":"Difference","left":19,"right":6}},
    "21": {"id": 21, "name": "diff3",         "op": {"type":"Difference","left":20,"right":8}},
    "22": {"id": 22, "name": "diff4",         "op": {"type":"Difference","left":21,"right":10}},
    "23": {"id": 23, "name": "diff5",         "op": {"type":"Difference","left":22,"right":12}},
    "24": {"id": 24, "name": "diff6",         "op": {"type":"Difference","left":23,"right":14}},
    "25": {"id": 25, "name": "diff7",         "op": {"type":"Difference","left":24,"right":16}},
    "26": {"id": 26, "name": "flange",        "op": {"type":"Difference","left":25,"right":18}}
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 26, "material": "default"}]
}