run 20260428T213644Z-bd9a

Summary

Prompt

Start with a rectangular block 50mm long (X) × 30mm wide (Y) × 20mm tall (Z), centered in X and Y with the bottom face on the XY plane (so it spans x in [-25, 25], y in [-15, 15], z in [0, 20]). Cut away the upper +X corner: remove material in the region x in [0, 25], y in [-15, 15], z in [10, 20]. The result has an L-shape when viewed from +Y. Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}

params: {
  "type": "bbox",
  "min": [
    -25,
    -15,
    0
  ],
  "max": [
    25,
    15,
    20
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    50,
    30,
    20
  ],
  "actual_min": [
    0,
    0,
    0
  ],
  "deviation_max": [
    25,
    15,
    0
  ],
  "deviation_min": [
    25,
    15,
    0
  ],
  "max_abs_deviation_mm": 25,
  "tolerance_mm": 0.05
}

params: {
  "type": "mass_props",
  "volume_mm3": 22500,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 22500,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 22500,
    "tolerance_pct": 0.1
  }
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          50,
          30,
          20
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          50,
          30,
          20
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 0.061644140029689765
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 22500,
        "pass": true,
        "roundtripped_mm3": 22500
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

{
  "model": "gpt-4o-mini",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 431
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T213644Z-bd9a.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Base Block",
      "op": {
        "type": "Cube",
        "size": {
          "x": 50,
          "y": 30,
          "z": 20
        }
      }
    },
    "2": {
      "id": 2,
      "name": "Cutaway Block",
      "op": {
        "type": "Cube",
        "size": {
          "x": 25,
          "y": 30,
          "z": 10
        }
      }
    },
    "3": {
      "id": 3,
      "name": "Translate Cutaway Block",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {
          "x": 12.5,
          "y": 0,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": "Final Shape",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 3
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 4,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:55.720Z · static site, regenerate with npm run build -w @mecheval/leaderboard