run 20260428T212130Z-0a6d

Summary

Prompt

Make a U-shaped channel bracket built from three rectangular plates fused into a single solid. Bottom plate: x in [0, 30], y in [0, 40], z in [0, 4]. Left wall standing on top of the bottom: x in [0, 4], y in [0, 40], z in [4, 30]. Right wall standing on top of the bottom: x in [26, 30], y in [0, 40], z in [4, 30]. Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

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

params: {
  "type": "bbox",
  "min": [
    0,
    0,
    0
  ],
  "max": [
    30,
    40,
    30
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    30,
    40,
    30
  ],
  "actual_min": [
    0,
    0,
    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": 13120,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 13120,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 13120,
    "tolerance_pct": 0.1
  }
}

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

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          40,
          30
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          40,
          30
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 0.05830951894845301
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 13120,
        "pass": true,
        "roundtripped_mm3": 13120
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

{
  "model": "claude-sonnet-4-6",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 403
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T212130Z-0a6d.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "BottomPlate", "op": {"type": "Cube", "size": {"x": 30, "y": 40, "z": 4}} },
    "2": { "id": 2, "name": "LeftWallShape", "op": {"type": "Cube", "size": {"x": 4, "y": 40, "z": 26}} },
    "3": { "id": 3, "name": "LeftWall", "op": {"type": "Translate", "child": 2, "offset": {"x": 0, "y": 0, "z": 4}} },
    "4": { "id": 4, "name": "RightWallShape", "op": {"type": "Cube", "size": {"x": 4, "y": 40, "z": 26}} },
    "5": { "id": 5, "name": "RightWall", "op": {"type": "Translate", "child": 4, "offset": {"x": 26, "y": 0, "z": 4}} },
    "6": { "id": 6, "name": "UnionBottomLeft", "op": {"type": "Union", "left": 1, "right": 3} },
    "7": { "id": 7, "name": "ChannelBracket", "op": {"type": "Union", "left": 6, "right": 5} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 7, "material": "default" }]
}

generated 2026-06-19T01:47:55.464Z · static site, regenerate with npm run build -w @mecheval/leaderboard