Plate with stadium-shaped through-slot A · A4 · a4-slotted-bracket-01

Expected

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

{
  "type": "valid_solid"
}

{
  "type": "bbox",
  "min": [
    -40,
    -20,
    0
  ],
  "max": [
    40,
    20,
    8
  ],
  "tolerance_mm": 0.1
}

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

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

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

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

Anti-cheese

{
  "max_solid_count": 1
}

Limits

{
  "max_tokens": 40000,
  "max_wallclock_sec": 240,
  "max_tool_calls": 40
}

Recent attempts

Runs (20)

generated 2026-06-17T03:16:07.254Z · static site, regenerate with npm run build -w @mecheval/leaderboard