← mecheval / run / a2-tee-bracket-01 / openai-direct-gpt-5 / 20260428T214120Z-bb37

run 20260428T214120Z-bb37

a2-tee-bracket-01 · openai-direct-gpt-5

Summary

statusPASS
score1.00 (6/6)
submissionself-run
modelopenai-direct-gpt-5 (openai)
started2026-04-28T21:41:20.245Z
ended2026-04-28T21:41:52.534Z
tokens667 in · 2,601 out · 3,268 total
wallclock32.2s
tool calls1
task hashb0cf14433cfe8350…
vcad hash639c68b270169257…

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

0
valid_solid
pass
params + details
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}
1
bbox
pass
params + details
params: {
  "type": "bbox",
  "min": [
    -30,
    0,
    0
  ],
  "max": [
    30,
    50,
    5
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    30,
    50,
    5
  ],
  "actual_min": [
    -30,
    0,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}
2
mass_props
pass
params + details
params: {
  "type": "mass_props",
  "volume_mm3": 8705.48,
  "tolerance_pct": 0.5
}

details: {
  "volume": {
    "actual_mm3": 8707.364493215007,
    "deviation_pct": 0.021647206300028848,
    "pass": true,
    "spec_mm3": 8705.48,
    "tolerance_pct": 0.5
  }
}
3
hole_count
pass
params + details
params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 3,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 3,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 3,
  "found": [
    [
      0,
      45,
      5
    ],
    [
      -25,
      10,
      5
    ],
    [
      25,
      10,
      5
    ]
  ]
}
4
hole_positions
pass
params + details
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": [
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        45
      ],
      "pass": true,
      "spec_xy": [
        0,
        45
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -25,
        10
      ],
      "pass": true,
      "spec_xy": [
        -25,
        10
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        25,
        10
      ],
      "pass": true,
      "spec_xy": [
        25,
        10
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
5
step_roundtrip
pass
params + details
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          50,
          5
        ],
        "original_min": [
          -30,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          50,
          5
        ],
        "roundtripped_min": [
          -30,
          0,
          0
        ],
        "tolerance_mm": 0.3913118960624632
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 8707.364493215007,
        "pass": true,
        "roundtripped_mm3": 8707.364493215007
      }
    }
  ],
  "tolerance_pct": 0.5
}

Tool calls

0
openai.chat.completions.create
ok
32246ms
args
{
  "model": "gpt-5",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 467
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T214120Z-bb37.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "HorizontalBarBase", "op": { "type": "Cube", "size": { "x": 60, "y": 20, "z": 5 } } },
    "2": { "id": 2, "name": "HorizontalBar", "op": { "type": "Translate", "child": 1, "offset": { "x": -30, "y": 0, "z": 0 } } },
    "3": { "id": 3, "name": "VerticalStemBase", "op": { "type": "Cube", "size": { "x": 20, "y": 30, "z": 5 } } },
    "4": { "id": 4, "name": "VerticalStem", "op": { "type": "Translate", "child": 3, "offset": { "x": -10, "y": 20, "z": 0 } } },
    "5": { "id": 5, "name": "TBody", "op": { "type": "Union", "left": 2, "right": 4 } },
    "6": { "id": 6, "name": "HoleProto", "op": { "type": "Cylinder", "radius": 2.5, "height": 5, "segments": 32 } },
    "7": { "id": 7, "name": "Hole_TopStem", "op": { "type": "Translate", "child": 6, "offset": { "x": 0, "y": 45, "z": 0 } } },
    "8": { "id": 8, "name": "Hole_LeftBar", "op": { "type": "Translate", "child": 6, "offset": { "x": -25, "y": 10, "z": 0 } } },
    "9": { "id": 9, "name": "Hole_RightBar", "op": { "type": "Translate", "child": 6, "offset": { "x": 25, "y": 10, "z": 0 } } },
    "10": { "id": 10, "name": "Holes_Union_A", "op": { "type": "Union", "left": 7, "right": 8 } },
    "11": { "id": 11, "name": "Holes_Union", "op": { "type": "Union", "left": 10, "right": 9 } },
    "12": { "id": 12, "name": "Bracket_With_Holes", "op": { "type": "Difference", "left": 5, "right": 11 } }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 12, "material": "default" }]
}

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