run 20260428T215252Z-a730

Summary

Prompt

Make a stepped square pyramid built from three stacked rectangular blocks. All tiers are centered on the Z axis. Bottom tier: 40mm × 40mm × 10mm tall (x in [-20, 20], y in [-20, 20], z in [0, 10]). Middle tier sits directly on top: 28mm × 28mm × 10mm tall (x in [-14, 14], y in [-14, 14], z in [10, 20]). Top tier sits directly on top of the middle: 16mm × 16mm × 10mm tall (x in [-8, 8], y in [-8, 8], z in [20, 30]). Fuse all three into a single solid.

Checks

params: {
  "type": "valid_solid"
}

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

params: {
  "type": "bbox",
  "min": [
    -20,
    -20,
    0
  ],
  "max": [
    20,
    20,
    30
  ],
  "tolerance_mm": 0.05
}

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

params: {
  "type": "mass_props",
  "volume_mm3": 26400,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 26400,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 26400,
    "tolerance_pct": 0.1
  }
}

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

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          20,
          20,
          30
        ],
        "original_min": [
          -20,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          20,
          20,
          30
        ],
        "roundtripped_min": [
          -20,
          -20,
          0
        ],
        "tolerance_mm": 0.06403124237432849
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 26400,
        "pass": true,
        "roundtripped_mm3": 26400
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

{
  "model": "gpt-5-mini",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 518
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T215252Z-a730.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "bottom_cube_primitive",
      "op": {
        "type": "Cube",
        "size": {
          "x": 40,
          "y": 40,
          "z": 10
        }
      }
    },
    "2": {
      "id": 2,
      "name": "bottom_tier",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -20,
          "y": -20,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "middle_cube_primitive",
      "op": {
        "type": "Cube",
        "size": {
          "x": 28,
          "y": 28,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": "middle_tier",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -14,
          "y": -14,
          "z": 10
        }
      }
    },
    "5": {
      "id": 5,
      "name": "top_cube_primitive",
      "op": {
        "type": "Cube",
        "size": {
          "x": 16,
          "y": 16,
          "z": 10
        }
      }
    },
    "6": {
      "id": 6,
      "name": "top_tier",
      "op": {
        "type": "Translate",
        "child": 5,
        "offset": {
          "x": -8,
          "y": -8,
          "z": 20
        }
      }
    },
    "7": {
      "id": 7,
      "name": "union_bottom_middle",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    },
    "8": {
      "id": 8,
      "name": "stepped_pyramid",
      "op": {
        "type": "Union",
        "left": 7,
        "right": 6
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 8,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:55.753Z · static site, regenerate with npm run build -w @mecheval/leaderboard