← mecheval / run / a6-pulley-01 / claude-mcp-claude-opus-4-7 / 20260612T004133Z-97fc

run 20260612T004133Z-97fc

a6-pulley-01 · claude-mcp-claude-opus-4-7

Summary

statusPASS
score1.00 (6/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-12T00:41:33.942Z
ended2026-06-12T00:43:24.541Z
tokens611,133 in · 6,556 out · 617,689 total
wallclock110.5s
tool calls47
task hash58d33316e6c4cd6c…
vcad hash6868ec37226e0fbb…

Prompt

Make a flanged belt pulley as a single solid. The pulley has three coaxial sections stacked along Z, all centered on the Z axis, with the base on the XY plane. Bottom flange: a cylinder of diameter 80mm and height 8mm (z = 0 to z = 8). Belt groove section: a cylinder of diameter 50mm and height 24mm (z = 8 to z = 32). Top flange: a cylinder of diameter 80mm and height 8mm (z = 32 to z = 40). A central through-bore of diameter 16mm runs along the Z axis through the full height (z = 0 to z = 40). The three outer sections form the stepped outer profile of the pulley when unioned together; the belt rides in the groove between the two flanges. 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": [
    -40,
    -40,
    0
  ],
  "max": [
    40,
    40,
    40
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    40,
    40,
    40
  ],
  "actual_min": [
    -40,
    -40,
    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": 119506.19,
  "center_of_mass": [
    0,
    0,
    20
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      -4.0384320535770285e-16,
      6.310943366462883e-16,
      20.000000000000018
    ],
    "bbox_diagonal_mm": 120,
    "deviation": [
      -4.0384320535770285e-16,
      6.310943366462883e-16,
      1.7763568394002505e-14
    ],
    "max_abs_deviation_mm": 1.7763568394002505e-14,
    "pass": true,
    "spec": [
      0,
      0,
      20
    ],
    "tolerance_mm": 1.2
  },
  "volume": {
    "actual_mm3": 119314.3050283568,
    "deviation_pct": 0.16056488090131685,
    "pass": true,
    "spec_mm3": 119506.19,
    "tolerance_pct": 1
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 16,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 1,
  "diameter_mm": 16,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": [
    [
      0,
      0,
      16
    ]
  ]
}
4
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 16,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 16,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        0
      ],
      "pass": true,
      "spec_xy": [
        0,
        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": [
          40,
          40,
          40
        ],
        "original_min": [
          -40,
          -40,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          40,
          40
        ],
        "roundtripped_min": [
          -40,
          -40,
          0
        ],
        "tolerance_mm": 1.2
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.4290363195465455,
        "original_mm3": 119314.30502835677,
        "pass": true,
        "roundtripped_mm3": 118802.40332537057
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "difference",
  "name": "Flanged Pulley",
  "params": {
    "a": {
      "type": "union",
      "params": {
        "a": {
          "type": "union",
          "params": {
            "a": {
              "type": "translate",
              "params": {
                "v": [
                  0,
                  0,
                  0
                ],
                "child": {
                  "type": "translate",
                  "params": {
                    "v": [
                      -40,
                      -40,
                      0
                    ],
                    "child": {
                      "type": "cylinder",
                      "params": {
                        "r": 40,
                        "h": 8
                      }
                    }
                  }
                }
              }
            },
            "b": {
              "type": "translate",
              "params": {
                "v": [
                  -25,
                  -25,
                  8
                ],
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 25,
                    "h": 24
                  }
                }
              }
            }
          }
        },
        "b": {
          "type": "translate",
          "params": {
            "v": [
              -40,
              -40,
              32
            ],
            "child": {
              "type": "cylinder",
              "params": {
                "r": 40,
                "h": 8
              }
            }
          }
        }
      }
    },
    "b": {
      "type": "translate",
      "params": {
        "v": [
          -8,
          -8,
          0
        ],
        "child": {
          "type": "cylinder",
          "params": {
            "r": 8,
            "h": 40
          }
        }
      }
    }
  }
}
2
delete
err
4ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "Flanged Pulley"
}
3
read
ok
2ms
args
{
  "document_id": "doc_1781224894115_1"
}
4
create
err
4ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "BottomFlange",
  "params": {
    "radius": 40,
    "height": 8
  }
}
5
create
ok
4ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "BottomFlange",
  "params": {
    "radius": 40,
    "height": 8,
    "segments": 64
  }
}
6
create
ok
7ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "Groove",
  "params": {
    "radius": 25,
    "height": 24,
    "segments": 64
  }
}
7
create
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "TopFlange",
  "params": {
    "radius": 40,
    "height": 8,
    "segments": 64
  }
}
8
create
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "Bore",
  "params": {
    "radius": 8,
    "height": 40,
    "segments": 64
  }
}
9
read
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "1"
}
10
delete
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "1"
}
11
delete
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "2"
}
12
delete
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "3"
}
13
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "4"
}
14
create_cad_loon
ok
15ms
args
{
  "source": "[root\n  [difference\n    [translate 0 0 0 [cylinder 8 40]]\n    [union\n      [translate 0 0 0 [cylinder 40 8]]\n      [union\n        [translate 0 0 8 [cylinder 25 24]]\n        [translate 0 0 32 [cylinder 40 8]]]]]\n  \"steel\"]",
  "format": "json"
}
15
create
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "BottomFlange",
  "params": {
    "radius": 40,
    "height": 8,
    "segments": 64
  }
}
16
create
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "GrooveCyl",
  "params": {
    "radius": 25,
    "height": 24,
    "segments": 64
  },
  "parent_part_id": "1"
}
17
read
ok
2ms
args
{
  "document_id": "doc_1781224894115_1"
}
18
delete
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "1"
}
19
delete
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "2"
}
20
create
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "Bottom",
  "params": {
    "radius": 40,
    "height": 8,
    "segments": 64
  }
}
21
create
err
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "translate",
  "name": "LiftGroove",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 8
    },
    "child": {
      "type": "cylinder",
      "params": {
        "radius": 25,
        "height": 24,
        "segments": 64
      }
    }
  }
}
22
create
ok
4ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "GrooveCyl",
  "params": {
    "radius": 25,
    "height": 24,
    "segments": 64
  }
}
23
create
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "translate",
  "name": "LiftGroove",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 8
    },
    "child": 2
  },
  "parent_part_id": "2"
}
24
read
ok
1ms
args
{
  "document_id": "doc_1781224894115_1"
}
25
read
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "3"
}
26
create
ok
8ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "union",
  "name": "BottomPlusGroove",
  "params": {
    "left": 1,
    "right": 3
  },
  "parent_part_id": "1"
}
27
read
ok
2ms
args
{
  "document_id": "doc_1781224894115_1"
}
28
read
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "4"
}
29
create
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "TopCyl",
  "params": {
    "radius": 40,
    "height": 8,
    "segments": 64
  }
}
30
create
ok
2ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "translate",
  "name": "LiftTop",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 32
    },
    "child": 5
  },
  "parent_part_id": "5"
}
31
create
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "union",
  "name": "Body",
  "params": {
    "left": 4,
    "right": 6
  },
  "parent_part_id": "4"
}
32
create
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "cylinder",
  "name": "Bore",
  "params": {
    "radius": 8,
    "height": 40,
    "segments": 64
  }
}
33
create
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "type": "difference",
  "name": "Pulley",
  "params": {
    "left": 7,
    "right": 8
  },
  "parent_part_id": "7"
}
34
read
ok
2ms
args
{
  "document_id": "doc_1781224894115_1"
}
35
inspect_cad
ok
128ms
args
{
  "document_id": "doc_1781224894115_1"
}
36
render_view
ok
219ms
args
{
  "document_id": "doc_1781224894115_1"
}
37
get_document
ok
2ms
args
{
  "document_id": "doc_1781224894115_1"
}
38
delete
ok
3ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "1"
}
39
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "2"
}
40
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "3"
}
41
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "4"
}
42
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "5"
}
43
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "6"
}
44
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "7"
}
45
delete
ok
1ms
args
{
  "document_id": "doc_1781224894115_1",
  "part_id": "8"
}
46
get_document
ok
0ms
args
{
  "document_id": "doc_1781224894115_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260612T004133Z-97fc.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Bottom",
      "op": {
        "type": "Cylinder",
        "radius": 40,
        "height": 8,
        "segments": 64
      }
    },
    "2": {
      "id": 2,
      "name": "GrooveCyl",
      "op": {
        "type": "Cylinder",
        "radius": 25,
        "height": 24,
        "segments": 64
      }
    },
    "3": {
      "id": 3,
      "name": "LiftGroove",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {
          "x": 0,
          "y": 0,
          "z": 8
        }
      }
    },
    "4": {
      "id": 4,
      "name": "BottomPlusGroove",
      "op": {
        "type": "Union",
        "left": 1,
        "right": 3
      }
    },
    "5": {
      "id": 5,
      "name": "TopCyl",
      "op": {
        "type": "Cylinder",
        "radius": 40,
        "height": 8,
        "segments": 64
      }
    },
    "6": {
      "id": 6,
      "name": "LiftTop",
      "op": {
        "type": "Translate",
        "child": 5,
        "offset": {
          "x": 0,
          "y": 0,
          "z": 32
        }
      }
    },
    "7": {
      "id": 7,
      "name": "Body",
      "op": {
        "type": "Union",
        "left": 4,
        "right": 6
      }
    },
    "8": {
      "id": 8,
      "name": "Bore",
      "op": {
        "type": "Cylinder",
        "radius": 8,
        "height": 40,
        "segments": 64
      }
    },
    "9": {
      "id": 9,
      "name": "Pulley",
      "op": {
        "type": "Difference",
        "left": 7,
        "right": 8
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 9,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:56.276Z · static site, regenerate with npm run build -w @mecheval/leaderboard