run 20260428T211548Z-4307

Summary

Prompt

Make a flat T-shaped bracket lying in the XY plane, 5mm thick (z = 0 to z = 5). Horizontal bar: x in [-30, 30], y in [0, 20]. Vertical stem extending in +Y from the middle of the horizontal bar: x in [-10, 10], y in [20, 50]. Drill three through-holes of diameter 5mm, axes parallel to Z: one at (0, 45) at the top of the stem, and two on the horizontal bar at (-25, 10) and (25, 10). 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": [
    -30,
    0,
    0
  ],
  "max": [
    30,
    50,
    5
  ],
  "tolerance_mm": 0.1
}

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

params: {
  "type": "mass_props",
  "volume_mm3": 8705.48,
  "tolerance_pct": 0.5
}

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

params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 3,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 3,
  "found": []
}

params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      0,
      45,
      0
    ],
    [
      -25,
      10,
      0
    ],
    [
      25,
      10,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 5,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        0,
        45
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -25,
        10
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        25,
        10
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}

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": 467
}

What the model built

.vcad source

{
  "version": "0.1",
  "nodes": {
    "horizontal_bar": {
      "id": "horizontal_bar",
      "name": "Horizontal Bar",
      "op": {
        "type": "Cube",
        "size": {"x": 60, "y": 20, "z": 5}
      }
    },
    "horizontal_bar_centered": {
      "id": "horizontal_bar_centered",
      "name": "Horizontal Bar Centered",
      "op": {
        "type": "Translate",
        "child": "horizontal_bar",
        "offset": {"x": -30, "y": 0, "z": 0}
      }
    },
    "vertical_stem": {
      "id": "vertical_stem",
      "name": "Vertical Stem",
      "op": {
        "type": "Cube",
        "size": {"x": 20, "y": 30, "z": 5}
      }
    },
    "vertical_stem_centered": {
      "id": "vertical_stem_centered",
      "name": "Vertical Stem Centered",
      "op": {
        "type": "Translate",
        "child": "vertical_stem",
        "offset": {"x": -10, "y": 20, "z": 0}
      }
    },
    "t_shape": {
      "id": "t_shape",
      "name": "T-Shape Union",
      "op": {
        "type": "Union",
        "left": "horizontal_bar_centered",
        "right": "vertical_stem_centered"
      }
    },
    "hole_top": {
      "id": "hole_top",
      "name": "Top Hole",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 5,
        "segments": 32
      }
    },
    "hole_top_positioned": {
      "id": "hole_top_positioned",
      "name": "Top Hole Positioned",
      "op": {
        "type": "Translate",
        "child": "hole_top",
        "offset": {"x": 0, "y": 45, "z": 0}
      }
    },
    "hole_left": {
      "id": "hole_left",
      "name": "Left Hole",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 5,
        "segments": 32
      }
    },
    "hole_left_positioned": {
      "id": "hole_left_positioned",
      "name": "Left Hole Positioned",
      "op": {
        "type": "Translate",
        "child": "hole_left",
        "offset": {"x": -25, "y": 10, "z": 0}
      }
    },
    "hole_right": {
      "id": "hole_right",
      "name": "Right Hole",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 5,
        "segments": 32
      }
    },
    "hole_right_positioned": {
      "id": "hole_right_positioned",
      "name": "Right Hole Positioned",
      "op": {
        "type": "Translate",
        "child": "hole_right",
        "offset": {"x": 25, "y": 10, "z": 0}
      }
    },
    "with_hole_top": {
      "id": "with_hole_top",
      "name": "After Top Hole",
      "op": {
        "type": "Difference",
        "left": "t_shape",
        "right": "hole_top_positioned"
      }
    },
    "with_hole_left": {
      "id": "with_hole_left",
      "name": "After Left Hole",
      "op": {
        "type": "Difference",
        "left": "with_hole_top",
        "right": "hole_left_positioned"
      }
    },
    "final_bracket": {
      "id": "final_bracket",
      "name": "T-Bracket with Holes",
      "op": {
        "type": "Difference",
        "left": "with_hole_left",
        "right": "hole_right_positioned"
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": "final_bracket",
      "material": "default"
    }
  ]
}

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