run 20260428T211923Z-b6c8

Summary

Prompt

Make a finned block. Base: a rectangular plate 50mm long (X) × 30mm wide (Y) × 5mm thick (Z), centered in X and Y, with the bottom face on the XY plane (z = 0 to z = 5). Three rectangular fins stand on top of the base, each 50mm long in X, 3mm thick in Y, and 15mm tall in Z (z = 5 to z = 20). The fins are centered on y = -10, y = 0, and y = 10 (each fin spans 1.5mm to either side of its centerline). 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": 0.1
}

details: {
  "actual_max": [
    25,
    15,
    20
  ],
  "actual_min": [
    -25,
    -15,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}

params: {
  "type": "mass_props",
  "volume_mm3": 14250,
  "tolerance_pct": 0.5
}

details: {
  "volume": {
    "actual_mm3": 14250,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 14250,
    "tolerance_pct": 0.5
  }
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          25,
          15,
          20
        ],
        "original_min": [
          -25,
          -15,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          25,
          15,
          20
        ],
        "roundtripped_min": [
          -25,
          -15,
          0
        ],
        "tolerance_mm": 0.3082207001484488
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 14250,
        "pass": true,
        "roundtripped_mm3": 14250
      }
    }
  ],
  "tolerance_pct": 0.5
}

Tool calls

{
  "model": "claude-sonnet-4-6",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 486
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T211923Z-b6c8.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {"id": 1, "name": "base_cube", "op": {"type": "Cube", "size": {"x": 50, "y": 30, "z": 5}}},
    "2": {"id": 2, "name": "base_translated", "op": {"type": "Translate", "child": 1, "offset": {"x": -25, "y": -15, "z": 0}}},
    "3": {"id": 3, "name": "fin_cube", "op": {"type": "Cube", "size": {"x": 50, "y": 3, "z": 15}}},
    "4": {"id": 4, "name": "fin1", "op": {"type": "Translate", "child": 3, "offset": {"x": -25, "y": -11.5, "z": 5}}},
    "5": {"id": 5, "name": "fin_cube2", "op": {"type": "Cube", "size": {"x": 50, "y": 3, "z": 15}}},
    "6": {"id": 6, "name": "fin2", "op": {"type": "Translate", "child": 5, "offset": {"x": -25, "y": -1.5, "z": 5}}},
    "7": {"id": 7, "name": "fin_cube3", "op": {"type": "Cube", "size": {"x": 50, "y": 3, "z": 15}}},
    "8": {"id": 8, "name": "fin3", "op": {"type": "Translate", "child": 7, "offset": {"x": -25, "y": 8.5, "z": 5}}},
    "9": {"id": 9, "name": "union1", "op": {"type": "Union", "left": 2, "right": 4}},
    "10": {"id": 10, "name": "union2", "op": {"type": "Union", "left": 9, "right": 6}},
    "11": {"id": 11, "name": "finned_block", "op": {"type": "Union", "left": 10, "right": 8}}
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 11, "material": "default"}]
}

generated 2026-06-19T01:47:55.548Z · static site, regenerate with npm run build -w @mecheval/leaderboard