← mecheval / run / a5-u-bracket-01 / claude-mcp-claude-opus-4-7 / 20260611T230057Z-86f3

run 20260611T230057Z-86f3

a5-u-bracket-01 · claude-mcp-claude-opus-4-7

Summary

statusPASS
score1.00 (6/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T23:00:57.563Z
ended2026-06-11T23:03:01.940Z
tokens630,219 in · 8,183 out · 638,402 total
wallclock124.3s
tool calls51
task hashe2050e1f3a71142b…
vcad hash8a8ce208db5c0641…

Prompt

Make a U-channel bracket as a single solid. The base is a rectangular plate 100mm × 30mm × 8mm with its bottom face on the XY plane, centered in X and Y (so it spans x in [-50, 50], y in [-15, 15], z in [0, 8]). From the left end of the base, a vertical leg rises: 8mm × 30mm × 35mm, at x in [-50, -42], y in [-15, 15], z in [8, 43]. A matching vertical leg rises from the right end: 8mm × 30mm × 35mm, at x in [42, 50], y in [-15, 15], z in [8, 43]. Drill two through-holes of diameter 6mm, axes parallel to Z, through the base only (z = 0 to z = 8), centered at (-25, 0) and (25, 0). Output a single solid.

Checks

0
valid_solid
pass
params + details 
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}
1
bbox
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    -50,
    -15,
    0
  ],
  "max": [
    50,
    15,
    43
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    50,
    15,
    43
  ],
  "actual_min": [
    -50,
    -15,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}
2
mass_props
pass
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 40347.61,
  "center_of_mass": [
    0,
    0,
    12.95
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      -4.188882232560922e-16,
      -7.51515762084658e-17,
      12.952041809598818
    ],
    "bbox_diagonal_mm": 112.91146974510606,
    "deviation": [
      -4.188882232560922e-16,
      -7.51515762084658e-17,
      0.0020418095988183893
    ],
    "max_abs_deviation_mm": 0.0020418095988183893,
    "pass": true,
    "spec": [
      0,
      0,
      12.95
    ],
    "tolerance_mm": 1.1291146974510606
  },
  "volume": {
    "actual_mm3": 40348.337025493376,
    "deviation_pct": 0.0018019047308515908,
    "pass": true,
    "spec_mm3": 40347.61,
    "tolerance_pct": 1
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 6,
  "expected": 2,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 2,
  "diameter_mm": 6,
  "diameter_tolerance_mm": 0.05,
  "expected": 2,
  "found": [
    [
      -25,
      0,
      6
    ],
    [
      25,
      0,
      6
    ]
  ]
}
4
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 6,
  "positions": [
    [
      -25,
      0,
      0
    ],
    [
      25,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 6,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        -25,
        0
      ],
      "pass": true,
      "spec_xy": [
        -25,
        0
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        25,
        0
      ],
      "pass": true,
      "spec_xy": [
        25,
        0
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
5
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          50,
          15,
          43
        ],
        "original_min": [
          -50,
          -15,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          50,
          15,
          43
        ],
        "roundtripped_min": [
          -50,
          -15,
          0
        ],
        "tolerance_mm": 1.1291146974510606
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.003593423629279267,
        "original_mm3": 40348.337025493376,
        "pass": true,
        "roundtripped_mm3": 40349.78691217007
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "difference",
  "name": "U-Channel Bracket",
  "params": {
    "tool": {
      "type": "union",
      "params": {
        "other": {
          "type": "union",
          "params": {
            "other": {
              "type": "translate",
              "params": {
                "x": -50,
                "y": -15,
                "z": 8,
                "solid": {
                  "type": "cube",
                  "params": {
                    "x": 8,
                    "y": 30,
                    "z": 35
                  }
                }
              }
            },
            "solid": {
              "type": "translate",
              "params": {
                "x": 42,
                "y": -15,
                "z": 8,
                "solid": {
                  "type": "cube",
                  "params": {
                    "x": 8,
                    "y": 30,
                    "z": 35
                  }
                }
              }
            }
          }
        },
        "solid": {
          "type": "translate",
          "params": {
            "x": -50,
            "y": -15,
            "z": 0,
            "solid": {
              "type": "cube",
              "params": {
                "x": 100,
                "y": 30,
                "z": 8
              }
            }
          }
        }
      }
    },
    "subject": {
      "type": "union",
      "params": {
        "other": {
          "type": "translate",
          "params": {
            "x": -25,
            "y": 0,
            "z": -0.1,
            "solid": {
              "type": "cylinder",
              "params": {
                "radius": 3,
                "height": 8.2
              }
            }
          }
        },
        "solid": {
          "type": "translate",
          "params": {
            "x": 25,
            "y": 0,
            "z": -0.1,
            "solid": {
              "type": "cylinder",
              "params": {
                "radius": 3,
                "height": 8.2
              }
            }
          }
        }
      }
    }
  }
}
2
create_cad_loon
ok
12ms
args
{
  "source": "[let base [translate -50 -15 0 [cube 100 30 8]]\n[let left-leg [translate -50 -15 8 [cube 8 30 35]]\n[let right-leg [translate 42 -15 8 [cube 8 30 35]]\n[let hole1 [translate -25 0 -0.1 [cylinder 3 8.2]]\n[let hole2 [translate 25 0 -0.1 [cylinder 3 8.2]]\n[root [difference [union hole1 hole2] [union left-leg [union right-leg base]]] \"steel\"]\n]]]]]",
  "format": "json"
}
3
create
err
4ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "difference",
  "name": "U-Channel Bracket",
  "params": {
    "left": {
      "type": "union",
      "params": {
        "left": {
          "type": "translate",
          "params": {
            "x": -50,
            "y": -15,
            "z": 0,
            "child": {
              "type": "cube",
              "params": {
                "size": {
                  "x": 100,
                  "y": 30,
                  "z": 8
                }
              }
            }
          }
        },
        "right": {
          "type": "union",
          "params": {
            "left": {
              "type": "translate",
              "params": {
                "x": -50,
                "y": -15,
                "z": 8,
                "child": {
                  "type": "cube",
                  "params": {
                    "size": {
                      "x": 8,
                      "y": 30,
                      "z": 35
                    }
                  }
                }
              }
            },
            "right": {
              "type": "translate",
              "params": {
                "x": 42,
                "y": -15,
                "z": 8,
                "child": {
                  "type": "cube",
                  "params": {
                    "size": {
                      "x": 8,
                      "y": 30,
                      "z": 35
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "right": {
      "type": "union",
      "params": {
        "left": {
          "type": "translate",
          "params": {
            "x": -25,
            "y": 0,
            "z": -0.1,
            "child": {
              "type": "cylinder",
              "params": {
                "radius": 3,
                "height": 8.2
              }
            }
          }
        },
        "right": {
          "type": "translate",
          "params": {
            "x": 25,
            "y": 0,
            "z": -0.1,
            "child": {
              "type": "cylinder",
              "params": {
                "radius": 3,
                "height": 8.2
              }
            }
          }
        }
      }
    }
  }
}
4
create
ok
6ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cube",
  "name": "base_cube",
  "params": {
    "size": {
      "x": 100,
      "y": 30,
      "z": 8
    }
  }
}
5
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cube",
  "name": "leg_cube_L",
  "params": {
    "size": {
      "x": 8,
      "y": 30,
      "z": 35
    }
  }
}
6
create
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cube",
  "name": "leg_cube_R",
  "params": {
    "size": {
      "x": 8,
      "y": 30,
      "z": 35
    }
  }
}
7
create
err
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cylinder",
  "name": "hole_cyl_L",
  "params": {
    "radius": 3,
    "height": 8.2
  }
}
8
create
err
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cylinder",
  "name": "hole_cyl_R",
  "params": {
    "radius": 3,
    "height": 8.2
  }
}
9
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cylinder",
  "name": "hole_cyl_L",
  "params": {
    "radius": 3,
    "height": 8.2,
    "segments": 64
  }
}
10
create
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cylinder",
  "name": "hole_cyl_R",
  "params": {
    "radius": 3,
    "height": 8.2,
    "segments": 64
  }
}
11
read
ok
3ms
args
{
  "document_id": "doc_1781218857732_1"
}
12
delete
ok
6ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "1"
}
13
delete
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "2"
}
14
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "3"
}
15
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "4"
}
16
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "5"
}
17
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cube",
  "name": "base",
  "params": {
    "size": {
      "x": 100,
      "y": 30,
      "z": 8
    }
  }
}
18
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "translate",
  "name": "base_pos",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -50,
      "y": -15,
      "z": 0
    },
    "child": 1
  }
}
19
create
ok
4ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cube",
  "name": "leg_L_cube",
  "params": {
    "size": {
      "x": 8,
      "y": 30,
      "z": 35
    }
  }
}
20
create
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "translate",
  "name": "leg_L_pos",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": -50,
      "y": -15,
      "z": 8
    },
    "child": 3
  }
}
21
read
ok
2ms
args
{
  "document_id": "doc_1781218857732_1"
}
22
create
ok
4ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "union",
  "name": "base+legL",
  "parent_part_id": "2",
  "params": {
    "left": 2,
    "right": 4
  }
}
23
read
ok
2ms
args
{
  "document_id": "doc_1781218857732_1"
}
24
get_document
ok
2ms
args
{
  "document_id": "doc_1781218857732_1"
}
25
delete
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "1"
}
26
get_document
ok
2ms
args
{
  "document_id": "doc_1781218857732_1"
}
27
delete
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "2"
}
28
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "3"
}
29
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "4"
}
30
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cube",
  "name": "leg_R_cube",
  "params": {
    "size": {
      "x": 8,
      "y": 30,
      "z": 35
    }
  }
}
31
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "translate",
  "name": "leg_R_pos",
  "parent_part_id": "6",
  "params": {
    "offset": {
      "x": 42,
      "y": -15,
      "z": 8
    },
    "child": 6
  }
}
32
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "union",
  "name": "bracket_solid",
  "parent_part_id": "5",
  "params": {
    "left": 5,
    "right": 7
  }
}
33
delete
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "5"
}
34
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "6"
}
35
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "7"
}
36
create
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cylinder",
  "name": "hole_L_cyl",
  "params": {
    "radius": 3,
    "height": 8.2,
    "segments": 64
  }
}
37
create
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "cylinder",
  "name": "hole_R_cyl",
  "params": {
    "radius": 3,
    "height": 8.2,
    "segments": 64
  }
}
38
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "translate",
  "name": "hole_L_pos",
  "parent_part_id": "9",
  "params": {
    "offset": {
      "x": -25,
      "y": 0,
      "z": -0.1
    },
    "child": 9
  }
}
39
create
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "translate",
  "name": "hole_R_pos",
  "parent_part_id": "10",
  "params": {
    "offset": {
      "x": 25,
      "y": 0,
      "z": -0.1
    },
    "child": 10
  }
}
40
create
ok
3ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "union",
  "name": "holes_union",
  "parent_part_id": "11",
  "params": {
    "left": 11,
    "right": 12
  }
}
41
create
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "type": "difference",
  "name": "U-Channel Bracket",
  "parent_part_id": "8",
  "params": {
    "left": 8,
    "right": 13
  }
}
42
delete
ok
2ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "8"
}
43
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "9"
}
44
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "10"
}
45
delete
ok
0ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "11"
}
46
delete
ok
1ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "12"
}
47
delete
ok
0ms
args
{
  "document_id": "doc_1781218857732_1",
  "part_id": "13"
}
48
get_document
ok
2ms
args
{
  "document_id": "doc_1781218857732_1"
}
49
render_view
ok
123ms
args
{
  "document_id": "doc_1781218857732_1"
}
50
get_document
ok
2ms
args
{
  "document_id": "doc_1781218857732_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T230057Z-86f3.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "base",
      "op": {
        "type": "Cube",
        "size": {
          "x": 100,
          "y": 30,
          "z": 8
        }
      }
    },
    "2": {
      "id": 2,
      "name": "base_pos",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -50,
          "y": -15,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "leg_L_cube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 8,
          "y": 30,
          "z": 35
        }
      }
    },
    "4": {
      "id": 4,
      "name": "leg_L_pos",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -50,
          "y": -15,
          "z": 8
        }
      }
    },
    "5": {
      "id": 5,
      "name": "base+legL",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    },
    "6": {
      "id": 6,
      "name": "leg_R_cube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 8,
          "y": 30,
          "z": 35
        }
      }
    },
    "7": {
      "id": 7,
      "name": "leg_R_pos",
      "op": {
        "type": "Translate",
        "child": 6,
        "offset": {
          "x": 42,
          "y": -15,
          "z": 8
        }
      }
    },
    "8": {
      "id": 8,
      "name": "bracket_solid",
      "op": {
        "type": "Union",
        "left": 5,
        "right": 7
      }
    },
    "9": {
      "id": 9,
      "name": "hole_L_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 3,
        "height": 8.2,
        "segments": 64
      }
    },
    "10": {
      "id": 10,
      "name": "hole_R_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 3,
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      "op": {
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    "14": {
      "id": 14,
      "name": "U-Channel Bracket",
      "op": {
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}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:56.247Z · static site, regenerate with npm run build -w @mecheval/leaderboard