{
  "version": 1,
  "id": "centrifugal-impeller",
  "title": "Centrifugal impeller",
  "input": "Model a 120 mm centrifugal impeller: seven backward-curved main blades and seven splitter blades on a curved hub, 16 mm keyed bore.",
  "sourceKind": "repository-authored-deterministic-example",
  "aiGenerated": false,
  "sourceCommit": "e782a9528f1421d10775353c769cb987074c45c3",
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  "parameters": {
    "diameter": 120,
    "height": 44,
    "backPlate": 5,
    "outletHeight": 10,
    "bore": 16,
    "key": 5,
    "noseDiameter": 28,
    "eyeDiameter": 60,
    "blades": 7,
    "splitterStart": 0.55,
    "wrap": 70,
    "bladeThickness": 2.4
  },
  "originalSource": "scripts/public-cases/centrifugal-impeller.mjs",
  "rights": "Original Lovcad repository example; no user project or third-party design.",
  "geometry": {
    "units": "mm",
    "dimensions": [120.0000002, 120.0000002, 44.0000001],
    "volumeMm3": 150147.37691326923,
    "parts": [
      {
        "name": "Centrifugal impeller",
        "volumeMm3": 150147.37691326923
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    ],
    "clearanceCheck": "passed",
    "stepRoundtrip": "passed",
    "boundsCheck": "passed",
    "volumeCheck": "not declared",
    "volumeReference": "kernel volume recorded at generation; bounds checked against the declared envelope"
  },
  "limitations": [
    "No manufacturing, fit, strength or safety certification.",
    "Source-built example, not an AI generation benchmark.",
    "Drawing declarations and unrequested dimensions remain unverified."
  ],
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