{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "Cube25", "op": { "type": "Cube", "size": { "x": 25, "y": 25, "z": 25 } } },
    "2": { "id": 2, "name": "CenteredCube", "op": { "type": "Translate", "child": 1, "offset": { "x": -12.5, "y": -12.5, "z": -12.5 } } }
  },
  "materials": {},
  "part_materials": {},
  "roots": [ { "root": 2, "material": "default" } ]
}