{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "raw_cube", "op": {"type":"Cube","size":{"x":25,"y":25,"z":25}} },
    "2": { "id": 2, "name": "centered_cube", "op": {"type":"Translate","child":1,"offset":{"x":-12.5,"y":-12.5,"z":-12.5}} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root":2,"material":"default"}]
}