← mecheval / run / a2-flanged-cap-01 / openai-direct-gpt-4o-mini / 20260428T212727Z-1fbd

run 20260428T212727Z-1fbd

a2-flanged-cap-01 · openai-direct-gpt-4o-mini

Summary

status	fail
score	0.00 (0/7)
submission	self-run
model	openai-direct-gpt-4o-mini (openai)
started	2026-04-28T21:27:27.743Z
ended	2026-04-28T21:27:34.472Z
tokens	624 in · 419 out · 1,043 total
wallclock	6.7s
tool calls	1
task hash	`a438f2e4d00d25d7…`
vcad hash	`eb16e06f5eb286c3…`

Prompt

Make a circular flanged cap. Outer cylinder: outside diameter 60mm, height 8mm, axis along Z, base on the XY plane (z = 0 to z = 8). Concentric central through-hole of diameter 40mm, axis along Z. Six bolt holes of diameter 5mm on a 50mm bolt circle (radius 25mm from the axis), evenly spaced starting at 0 degrees, all parallel to Z and going fully through. Output a single solid.

Checks

valid_solid

fail

solid invalid

params + details

params: {
  "type": "valid_solid"
}

details: {
  "error": "parse: Invalid JSON vcad file: invalid type: map, expected u64 at line 48 column 5",
  "reason": "fatal evaluation error"
}

bbox

fail

? off by 0.00mm

params + details

params: {
  "type": "bbox",
  "min": [
    -30,
    -30,
    0
  ],
  "max": [
    30,
    30,
    8
  ],
  "tolerance_mm": 0.1
}

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

mass_props

fail

mass props off

params + details

params: {
  "type": "mass_props",
  "volume_mm3": 11623.89,
  "center_of_mass": [
    0,
    0,
    4
  ],
  "tolerance_pct": 0.5
}

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

hole_count

fail

found 0/1 holes of ⌀40mm

params + details

params: {
  "type": "hole_count",
  "diameter_mm": 40,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 0,
  "diameter_mm": 40,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": []
}

hole_count

fail

found 0/6 holes of ⌀5mm

params + details

params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 6,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 6,
  "found": []
}

hole_positions

fail

6/6 mispositioned

params + details

params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      25,
      0,
      0
    ],
    [
      12.5,
      21.65,
      0
    ],
    [
      -12.5,
      21.65,
      0
    ],
    [
      -25,
      0,
      0
    ],
    [
      -12.5,
      -21.65,
      0
    ],
    [
      12.5,
      -21.65,
      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": [
        25,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        12.5,
        21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -12.5,
        21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -25,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -12.5,
        -21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        12.5,
        -21.65
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}

step_roundtrip

fail

STEP roundtrip failed

params + details

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

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

Tool calls

openai.chat.completions.create

6725ms

args

{
  "model": "gpt-4o-mini",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 441
}

What the model built

no render available — vcad-render did not produce geometry for this attempt

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "OuterCylinder",
      "op": {
        "type": "Cylinder",
        "radius": 30,
        "height": 8,
        "segments": 32
      }
    },
    "2": {
      "id": 2,
      "name": "CentralHole",
      "op": {
        "type": "Cylinder",
        "radius": 20,
        "height": 8,
        "segments": 32
      }
    },
    "3": {
      "id": 3,
      "name": "BoltHoles",
      "op": {
        "type": "Union",
        "left": {
          "type": "Translate",
          "child": 4,
          "offset": {
            "x": 25,
            "y": 0,
            "z": 4
          }
        },
        "right": {
          "type": "Translate",
          "child": 4,
          "offset": {
            "x": 0,
            "y": 25,
            "z": 4
          }
        }
      }
    },
    "4": {
      "id": 4,
      "name": "SingleBoltHole",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "5": {
      "id": 5,
      "name": "FlangedCap",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 2
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
    }
  ]
}

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