← mecheval / run / a6-yoke-block-01 / claude-mcp-claude-opus-4-7 / 20260612T004725Z-9fa7

run 20260612T004725Z-9fa7

a6-yoke-block-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.50 (2/4)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-12T00:47:25.889Z
ended2026-06-12T00:49:24.846Z
tokens629,166 in · 6,705 out · 635,871 total
wallclock118.9s
tool calls39
task hashb5ef575b6d36db34…
vcad hashd2c489394ea2294b…

Prompt

Make a fork yoke as a single solid. The base block is 80mm × 40mm × 12mm, centered in X and Y with its bottom face on the XY plane (x in [-40, 40], y in [-20, 20], z in [0, 12]). Two vertical tines (fork arms) rise from the base. The left tine is 14mm × 40mm × 45mm at x in [-40, -26], y in [-20, 20], z in [12, 57]. The right tine is 14mm × 40mm × 45mm at x in [26, 40], y in [-20, 20], z in [12, 57]. The gap between the tines (x in [-26, 26]) is open. Through both tines, drill a coaxial cross-bore of diameter 18mm whose axis is parallel to X, centered at y = 0, z = 44.5, passing through the left tine (x in [-40, -26]) and the right tine (x in [26, 40]). The cross-bore removes a cylindrical channel of diameter 18mm from each tine; the open gap between the tines is unaffected. Output a single solid.

Checks

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

details: {
  "root_count": 2,
  "solids_produced": 2
}
1
bbox
fail
Z off by -45.00mm
params + details 
params: {
  "type": "bbox",
  "min": [
    -40,
    -20,
    0
  ],
  "max": [
    40,
    20,
    57
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    80,
    40,
    12
  ],
  "actual_min": [
    -40,
    -20,
    0
  ],
  "deviation_max": [
    40,
    20,
    -45
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 45,
  "tolerance_mm": 0.1
}
2
mass_props
fail
volume off by 6.0%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 81674.78,
  "center_of_mass": [
    0,
    0,
    20.23
  ],
  "tolerance_pct": 1.5
}

details: {
  "center_of_mass": {
    "actual": [
      20,
      10,
      6
    ],
    "bbox_diagonal_mm": 134.6996659238619,
    "deviation": [
      20,
      10,
      -14.23
    ],
    "max_abs_deviation_mm": 20,
    "pass": false,
    "spec": [
      0,
      0,
      20.23
    ],
    "tolerance_mm": 2.020494988857928
  },
  "volume": {
    "actual_mm3": 76800,
    "deviation_pct": 5.96852541261819,
    "pass": false,
    "spec_mm3": 81674.78,
    "tolerance_pct": 1.5
  }
}
3
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          80,
          40,
          12
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          80,
          40,
          12
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 1.3536617007214173
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 38400,
        "pass": true,
        "roundtripped_mm3": 38400
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          40,
          20,
          12
        ],
        "original_min": [
          -40,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          20,
          12
        ],
        "roundtripped_min": [
          -40,
          -20,
          0
        ],
        "tolerance_mm": 1.3536617007214173
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 38400,
        "pass": true,
        "roundtripped_mm3": 38400
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "union",
  "name": "Fork Yoke",
  "params": {
    "children": [
      {
        "type": "translate",
        "params": {
          "x": -40,
          "y": -20,
          "z": 0,
          "child": {
            "type": "cube",
            "params": {
              "x": 80,
              "y": 40,
              "z": 12
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -40,
          "y": -20,
          "z": 12,
          "child": {
            "type": "difference",
            "params": {
              "children": [
                {
                  "type": "cube",
                  "params": {
                    "x": 14,
                    "y": 40,
                    "z": 45
                  }
                },
                {
                  "type": "translate",
                  "params": {
                    "x": 7,
                    "y": 20,
                    "z": 32.5,
                    "child": {
                      "type": "rotate",
                      "params": {
                        "x": 0,
                        "y": 90,
                        "z": 0,
                        "child": {
                          "type": "translate",
                          "params": {
                            "x": 0,
                            "y": 0,
                            "z": -20,
                            "child": {
                              "type": "cylinder",
                              "params": {
                                "radius": 9,
                                "height": 40
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              ]
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 26,
          "y": -20,
          "z": 12,
          "child": {
            "type": "difference",
            "params": {
              "children": [
                {
                  "type": "cube",
                  "params": {
                    "x": 14,
                    "y": 40,
                    "z": 45
                  }
                },
                {
                  "type": "translate",
                  "params": {
                    "x": 7,
                    "y": 20,
                    "z": 32.5,
                    "child": {
                      "type": "rotate",
                      "params": {
                        "x": 0,
                        "y": 90,
                        "z": 0,
                        "child": {
                          "type": "translate",
                          "params": {
                            "x": 0,
                            "y": 0,
                            "z": -20,
                            "child": {
                              "type": "cylinder",
                              "params": {
                                "radius": 9,
                                "height": 40
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              ]
            }
          }
        }
      }
    ]
  }
}
2
create_cad_loon
err
5ms
args
{
  "source": "[let\n  [base [translate -40 -20 0 [cube 80 40 12]]]\n  [left-tine [translate -40 -20 12 [cube 14 40 45]]]\n  [right-tine [translate 26 -20 12 [cube 14 40 45]]]\n  [bore [translate -40 0 44.5 [rotate 0 90 0 [cylinder 9 80]]]]\n  [root [difference bore [union left-tine [union right-tine base]]] \"steel\"]]",
  "format": "json"
}
3
create_cad_loon
ok
8ms
args
{
  "source": "[let base [translate -40 -20 0 [cube 80 40 12]]\n[let lt [translate -40 -20 12 [cube 14 40 45]]\n[let rt [translate 26 -20 12 [cube 14 40 45]]\n[let bore [translate -40 0 44.5 [rotate 0 90 0 [cylinder 9 80]]]\n[root [difference bore [union lt [union rt base]]] \"steel\"]]]]]",
  "format": "json"
}
4
create
ok
4ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "base",
  "params": {
    "size": {
      "x": 80,
      "y": 40,
      "z": 12
    }
  }
}
5
read
ok
3ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "1"
}
6
delete
ok
3ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "1"
}
7
create_cad_loon
ok
4ms
args
{
  "source": "[root\n  [difference\n    [translate -40 0 44.5 [rotate 0 1.5707963267948966 0 [cylinder 9 80]]]\n    [union\n      [translate -40 -20 0 [cube 80 40 12]]\n      [union\n        [translate -40 -20 12 [cube 14 40 45]]\n        [translate 26 -20 12 [cube 14 40 45]]]]]\n  \"steel\"]",
  "format": "json"
}
8
create
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "base_cube",
  "params": {
    "size": {
      "x": 80,
      "y": 40,
      "z": 12
    }
  }
}
9
create
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "left_tine_cube",
  "params": {
    "size": {
      "x": 14,
      "y": 40,
      "z": 45
    }
  }
}
10
create
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "right_tine_cube",
  "params": {
    "size": {
      "x": 14,
      "y": 40,
      "z": 45
    }
  }
}
11
create
err
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cylinder",
  "name": "bore_cyl",
  "params": {
    "radius": 9,
    "height": 80
  }
}
12
delete
ok
3ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "1"
}
13
delete
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
14
delete
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "3"
}
15
create
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "base",
  "params": {
    "size": {
      "x": 80,
      "y": 40,
      "z": 12
    }
  }
}
16
create
err
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "translate",
  "name": "center_base",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -20,
      "z": 0
    }
  }
}
17
create
ok
3ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "translate",
  "name": "center_base",
  "parent_part_id": "1",
  "params": {
    "child": 1,
    "offset": {
      "x": -40,
      "y": -20,
      "z": 0
    }
  }
}
18
read
ok
2ms
args
{
  "document_id": "doc_1781225246067_1"
}
19
read
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
20
read
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "1"
}
21
delete
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "1"
}
22
read
ok
3ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
23
create
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "left_tine",
  "parent_part_id": "2",
  "params": {
    "size": {
      "x": 14,
      "y": 40,
      "z": 45
    }
  }
}
24
read
ok
1ms
args
{
  "document_id": "doc_1781225246067_1"
}
25
read
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "3"
}
26
delete
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
27
delete
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "3"
}
28
create
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "base",
  "params": {
    "size": {
      "x": 80,
      "y": 40,
      "z": 12
    }
  }
}
29
create
err
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "translate",
  "name": "center_base",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -20,
      "z": 0
    }
  }
}
30
create
ok
3ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "translate",
  "name": "center_base",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -20,
      "z": 0
    },
    "child": 0
  }
}
31
read
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
32
delete
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "1"
}
33
delete
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
34
create
ok
2ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "cube",
  "name": "base",
  "params": {
    "size": {
      "x": 80,
      "y": 40,
      "z": 12
    }
  }
}
35
create
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "type": "translate",
  "name": "center_base",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -20,
      "z": 0
    },
    "child": 1
  }
}
36
read
ok
2ms
args
{
  "document_id": "doc_1781225246067_1"
}
37
read
ok
1ms
args
{
  "document_id": "doc_1781225246067_1",
  "part_id": "2"
}
38
get_document
ok
0ms
args
{
  "document_id": "doc_1781225246067_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260612T004725Z-9fa7.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "base",
      "op": {
        "type": "Cube",
        "size": {
          "x": 80,
          "y": 40,
          "z": 12
        }
      }
    },
    "2": {
      "id": 2,
      "name": "center_base",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -40,
          "y": -20,
          "z": 0
        }
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 1,
      "material": "default"
    },
    {
      "root": 2,
      "material": "default"
    }
  ]
}
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sibling project: vcad. · github

generated 2026-06-19T01:47:56.288Z · static site, regenerate with npm run build -w @mecheval/leaderboard