run 20260429T120303Z-8b44

Summary

Prompt

Make a flat rectangular plate 80mm × 40mm × 8mm thick, centered in X and Y with the bottom face on the XY plane (so it spans x in [-40, 40], y in [-20, 20], z in [0, 8]). Cut a stadium-shaped (rectangle with semicircular ends) slot all the way through the plate, axes along the X direction. The slot has total end-to-end length 50mm and width 10mm: the centers of the two semicircular ends are at (-20, 0) and (20, 0), each of radius 5mm, joined by a 40mm-long, 10mm-wide rectangular section (x in [-20, 20], y in [-5, 5]). The slot is cut through the full plate thickness. 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": [
    -40,
    -20,
    0
  ],
  "max": [
    40,
    20,
    8
  ],
  "tolerance_mm": 0.1
}

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

params: {
  "type": "mass_props",
  "volume_mm3": 21771.68,
  "tolerance_pct": 1
}

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

params: {
  "type": "hole_count",
  "diameter_mm": 10,
  "expected": 2,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 0,
  "diameter_mm": 10,
  "diameter_tolerance_mm": 0.1,
  "expected": 2,
  "found": []
}

params: {
  "type": "hole_positions",
  "diameter_mm": 10,
  "positions": [
    [
      -20,
      0,
      0
    ],
    [
      20,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 10,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -20,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        20,
        0
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

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

Tool calls

{
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 660
}

What the model built

.vcad source

{
  "version": "0.1",
  "nodes": {
    "plate": {
      "id": 0,
      "name": "base_plate",
      "op": {
        "type": "Cube",
        "size": {"x": 80, "y": 40, "z": 8}
      }
    },
    "plate_centered": {
      "id": 1,
      "name": "plate_centered",
      "op": {
        "type": "Translate",
        "child": 0,
        "offset": {"x": -40, "y": -20, "z": 0}
      }
    },
    "slot_rect": {
      "id": 2,
      "name": "slot_rectangle",
      "op": {
        "type": "Cube",
        "size": {"x": 40, "y": 10, "z": 8}
      }
    },
    "slot_rect_centered": {
      "id": 3,
      "name": "slot_rect_centered",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {"x": -20, "y": -5, "z": 0}
      }
    },
    "slot_left_semicircle": {
      "id": 4,
      "name": "slot_left_semicircle",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 8,
        "segments": 32
      }
    },
    "slot_left_semi_positioned": {
      "id": 5,
      "name": "slot_left_semi_positioned",
      "op": {
        "type": "Translate",
        "child": 4,
        "offset": {"x": -20, "y": 0, "z": 0}
      }
    },
    "slot_right_semicircle": {
      "id": 6,
      "name": "slot_right_semicircle",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 8,
        "segments": 32
      }
    },
    "slot_right_semi_positioned": {
      "id": 7,
      "name": "slot_right_semi_positioned",
      "op": {
        "type": "Translate",
        "child": 6,
        "offset": {"x": 20, "y": 0, "z": 0}
      }
    },
    "slot_union_1": {
      "id": 8,
      "name": "slot_union_1",
      "op": {
        "type": "Union",
        "left": 3,
        "right": 5
      }
    },
    "slot_complete": {
      "id": 9,
      "name": "slot_complete",
      "op": {
        "type": "Union",
        "left": 8,
        "right": 7
      }
    },
    "final_bracket": {
      "id": 10,
      "name": "slotted_bracket",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 9
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 10,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:56.130Z · static site, regenerate with npm run build -w @mecheval/leaderboard