run 20260611T223601Z-8bfa

Summary

Prompt

Make a cross-shaped frame in the XY plane by fusing two rectangular bars at right angles. Bar A is 100mm long along X, 20mm wide along Y, and 10mm tall along Z, centered in X and Y with its bottom face on the XY plane (so it spans x in [-50, 50], y in [-10, 10], z in [0, 10]). Bar B is 20mm wide along X, 100mm long along Y, and 10mm tall along Z, centered in X and Y with its bottom face on the XY plane (so it spans x in [-10, 10], y in [-50, 50], z in [0, 10]). Union the two bars into a single plus-sign-shaped solid; the central 20mm × 20mm × 10mm overlap is counted only once. Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

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

params: {
  "type": "bbox",
  "min": [
    -50,
    -50,
    0
  ],
  "max": [
    50,
    50,
    10
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    50,
    50,
    10
  ],
  "actual_min": [
    -50,
    -50,
    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": 36000,
  "center_of_mass": [
    0,
    0,
    5
  ],
  "tolerance_pct": 0.5
}

details: {
  "center_of_mass": {
    "actual": [
      0,
      0,
      5
    ],
    "bbox_diagonal_mm": 141.77446878757826,
    "deviation": [
      0,
      0,
      0
    ],
    "max_abs_deviation_mm": 0,
    "pass": true,
    "spec": [
      0,
      0,
      5
    ],
    "tolerance_mm": 0.7088723439378913
  },
  "volume": {
    "actual_mm3": 36000,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 36000,
    "tolerance_pct": 0.5
  }
}

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

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          50,
          50,
          10
        ],
        "original_min": [
          -50,
          -50,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          50,
          50,
          10
        ],
        "roundtripped_min": [
          -50,
          -50,
          0
        ],
        "tolerance_mm": 0.7088723439378913
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 36000,
        "pass": true,
        "roundtripped_mm3": 36000
      }
    }
  ],
  "tolerance_pct": 0.5
}

Tool calls

{}

{
  "source": "[union\n  [translate -50 -10 0 [cube 100 20 10]]\n  [translate -10 -50 0 [cube 20 100 10]]]",
  "format": "json"
}

{
  "document_id": "doc_1781217362162_1",
  "type": "cube",
  "name": "Bar A",
  "params": {
    "size": {
      "x": 100,
      "y": 20,
      "z": 10
    },
    "center": {
      "x": -50,
      "y": -10,
      "z": 0
    }
  }
}

{
  "document_id": "doc_1781217362162_1",
  "part_id": "1"
}

{
  "document_id": "doc_1781217362162_1",
  "part_id": "1"
}

{
  "document_id": "doc_1781217362162_1",
  "type": "cube",
  "name": "Bar A raw",
  "params": {
    "size": {
      "x": 100,
      "y": 20,
      "z": 10
    }
  }
}

{
  "document_id": "doc_1781217362162_1",
  "type": "translate",
  "name": "Bar A",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -50,
      "y": -10,
      "z": 0
    },
    "child": 1
  }
}

{
  "document_id": "doc_1781217362162_1",
  "type": "cube",
  "name": "Bar B raw",
  "params": {
    "size": {
      "x": 20,
      "y": 100,
      "z": 10
    }
  }
}

{
  "document_id": "doc_1781217362162_1",
  "type": "translate",
  "name": "Bar B",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": -10,
      "y": -50,
      "z": 0
    },
    "child": 3
  }
}

{
  "document_id": "doc_1781217362162_1"
}

{
  "document_id": "doc_1781217362162_1",
  "type": "union",
  "name": "Plus Frame",
  "params": {
    "left": 2,
    "right": 4
  }
}

{
  "document_id": "doc_1781217362162_1"
}

{
  "document_id": "doc_1781217362162_1"
}

{
  "document_id": "doc_1781217362162_1",
  "part_id": "1"
}

{
  "document_id": "doc_1781217362162_1"
}

{
  "document_id": "doc_1781217362162_1",
  "part_id": "2"
}

{
  "document_id": "doc_1781217362162_1",
  "part_id": "3"
}

{
  "document_id": "doc_1781217362162_1",
  "part_id": "4"
}

{
  "document_id": "doc_1781217362162_1"
}

{
  "document_id": "doc_1781217362162_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T223601Z-8bfa.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Bar A raw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 100,
          "y": 20,
          "z": 10
        }
      }
    },
    "2": {
      "id": 2,
      "name": "Bar A",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -50,
          "y": -10,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "Bar B raw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 20,
          "y": 100,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": "Bar B",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -10,
          "y": -50,
          "z": 0
        }
      }
    },
    "5": {
      "id": 5,
      "name": "Plus Frame",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:56.190Z · static site, regenerate with npm run build -w @mecheval/leaderboard