← mecheval / run / a4-rounded-bar-01 / claude-direct-claude-opus-4-7 / 20260429T120632Z-b1dd

run 20260429T120632Z-b1dd

a4-rounded-bar-01 · claude-direct-claude-opus-4-7

Summary

statusPASS
score1.00 (4/4)
submissionself-run
modelclaude-direct-claude-opus-4-7 (anthropic)
started2026-04-29T12:06:32.903Z
ended2026-04-29T12:06:38.059Z
tokens955 in · 510 out · 1,465 total
wallclock5.1s
tool calls1
task hash7d784df0d0a20935…
vcad hashf1d6be9f31bef2f5…

Prompt

Make a flat bar with a stadium-shaped (rectangle with semicircular ends) footprint, extruded 10mm along Z. Total end-to-end length is 80mm along X; total width is 20mm along Y. The footprint is the union of a 60mm × 20mm rectangle (x in [-30, 30], y in [-10, 10]) and two semicircles of radius 10mm centered at (-30, 0) and (30, 0). The bottom face sits on the XY plane (z = 0 to z = 10). Output a single solid (no holes or other features).

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": [
    -40,
    -10,
    0
  ],
  "max": [
    40,
    10,
    10
  ],
  "tolerance_mm": 0.2
}

details: {
  "actual_max": [
    40,
    10,
    10
  ],
  "actual_min": [
    -40,
    -10,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.2
}
2
mass_props
pass
params + details
params: {
  "type": "mass_props",
  "volume_mm3": 15141.59,
  "center_of_mass": [
    0,
    0,
    5
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      4.39629249700006e-15,
      -5.946010638026846e-17,
      4.999999999999997
    ],
    "bbox_diagonal_mm": 83.06623862918075,
    "deviation": [
      4.39629249700006e-15,
      -5.946010638026846e-17,
      -2.6645352591003757e-15
    ],
    "max_abs_deviation_mm": 4.39629249700006e-15,
    "pass": true,
    "spec": [
      0,
      0,
      5
    ],
    "tolerance_mm": 0.8306623862918074
  },
  "volume": {
    "actual_mm3": 15136.548745363963,
    "deviation_pct": 0.03329409022458463,
    "pass": true,
    "spec_mm3": 15141.59,
    "tolerance_pct": 1
  }
}
3
step_roundtrip
pass
params + details
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          40,
          10,
          10
        ],
        "original_min": [
          -40,
          -10,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          10,
          10
        ],
        "roundtripped_min": [
          -40,
          -10,
          0
        ],
        "tolerance_mm": 0.8306623862918074
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.2823713416216259,
        "original_mm3": 15136.548745363963,
        "pass": true,
        "roundtripped_mm3": 15093.807469596468
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
anthropic.messages.create
ok
5073ms
args
{
  "model": "claude-opus-4-7",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 500
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260429T120632Z-b1dd.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "rect", "op": {"type":"Cube", "size": {"x":60,"y":20,"z":10}} },
    "2": { "id": 2, "name": "rect_centered", "op": {"type":"Translate", "child":1, "offset":{"x":-30,"y":-10,"z":0}} },
    "3": { "id": 3, "name": "cyl_left", "op": {"type":"Cylinder", "radius":10, "height":10, "segments":64} },
    "4": { "id": 4, "name": "cyl_left_pos", "op": {"type":"Translate", "child":3, "offset":{"x":-30,"y":0,"z":0}} },
    "5": { "id": 5, "name": "cyl_right", "op": {"type":"Cylinder", "radius":10, "height":10, "segments":64} },
    "6": { "id": 6, "name": "cyl_right_pos", "op": {"type":"Translate", "child":5, "offset":{"x":30,"y":0,"z":0}} },
    "7": { "id": 7, "name": "u1", "op": {"type":"Union", "left":2, "right":4} },
    "8": { "id": 8, "name": "stadium", "op": {"type":"Union", "left":7, "right":6} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 8, "material": "default" }]
}

generated 2026-06-19T01:47:56.112Z · static site, regenerate with npm run build -w @mecheval/leaderboard