run 20260428T211705Z-ed63

Summary

Prompt

Make a finned block. Base: a rectangular plate 50mm long (X) × 30mm wide (Y) × 5mm thick (Z), centered in X and Y, with the bottom face on the XY plane (z = 0 to z = 5). Three rectangular fins stand on top of the base, each 50mm long in X, 3mm thick in Y, and 15mm tall in Z (z = 5 to z = 20). The fins are centered on y = -10, y = 0, and y = 10 (each fin spans 1.5mm to either side of its centerline). Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

details: {
  "error": "parse: Invalid JSON vcad file: invalid value: expected key to be a number in quotes at line 4 column 5",
  "reason": "fatal evaluation error"
}

params: {
  "type": "bbox",
  "min": [
    -25,
    -15,
    0
  ],
  "max": [
    25,
    15,
    20
  ],
  "tolerance_mm": 0.1
}

details: {
  "reason": "no valid solid to measure"
}

params: {
  "type": "mass_props",
  "volume_mm3": 14250,
  "tolerance_pct": 0.5
}

details: {
  "reason": "no valid solid to measure"
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.5
}

details: {
  "reason": "no valid solid to round-trip"
}

Tool calls

{
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 486
}

What the model built

.vcad source

{
  "version": "0.1",
  "nodes": {
    "base": {
      "id": "base",
      "name": "Base plate",
      "op": {
        "type": "Cube",
        "size": {"x": 50, "y": 30, "z": 5}
      }
    },
    "base_centered": {
      "id": "base_centered",
      "name": "Base plate centered",
      "op": {
        "type": "Translate",
        "child": "base",
        "offset": {"x": -25, "y": -15, "z": 0}
      }
    },
    "fin1": {
      "id": "fin1",
      "name": "Fin 1",
      "op": {
        "type": "Cube",
        "size": {"x": 50, "y": 3, "z": 15}
      }
    },
    "fin1_positioned": {
      "id": "fin1_positioned",
      "name": "Fin 1 positioned",
      "op": {
        "type": "Translate",
        "child": "fin1",
        "offset": {"x": -25, "y": -11.5, "z": 5}
      }
    },
    "fin2": {
      "id": "fin2",
      "name": "Fin 2",
      "op": {
        "type": "Cube",
        "size": {"x": 50, "y": 3, "z": 15}
      }
    },
    "fin2_positioned": {
      "id": "fin2_positioned",
      "name": "Fin 2 positioned",
      "op": {
        "type": "Translate",
        "child": "fin2",
        "offset": {"x": -25, "y": -1.5, "z": 5}
      }
    },
    "fin3": {
      "id": "fin3",
      "name": "Fin 3",
      "op": {
        "type": "Cube",
        "size": {"x": 50, "y": 3, "z": 15}
      }
    },
    "fin3_positioned": {
      "id": "fin3_positioned",
      "name": "Fin 3 positioned",
      "op": {
        "type": "Translate",
        "child": "fin3",
        "offset": {"x": -25, "y": 8.5, "z": 5}
      }
    },
    "base_with_fin1": {
      "id": "base_with_fin1",
      "name": "Base with fin 1",
      "op": {
        "type": "Union",
        "left": "base_centered",
        "right": "fin1_positioned"
      }
    },
    "base_with_fin1_2": {
      "id": "base_with_fin1_2",
      "name": "Base with fins 1 and 2",
      "op": {
        "type": "Union",
        "left": "base_with_fin1",
        "right": "fin2_positioned"
      }
    },
    "finned_block": {
      "id": "finned_block",
      "name": "Finned block",
      "op": {
        "type": "Union",
        "left": "base_with_fin1_2",
        "right": "fin3_positioned"
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": "finned_block",
      "material": "default"
    }
  ]
}

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