← mecheval / task / a5-hex-bolt-blank-01
Hex-head bolt blank (head + shank, no thread) A · A5 · a5-hex-bolt-blank-01
bolt · hex-head · shank · polygon · machined
Expected
Prompt
Make a hex-head bolt blank as a single solid with no holes. The hexagonal head is a regular hexagonal prism with flat-to-flat distance 24mm and height 14mm, base on the XY plane (z = 0 to z = 14), centered on the Z axis, oriented so two flats are parallel to the X axis (flat-to-flat distance 24mm in the Y direction, so the head spans y in [-12, 12] and x in [-13.856, 13.856]). Directly above the head and concentric with it is a cylindrical shank of diameter 14mm and height 46mm (z = 14 to z = 60). The combined part is a single solid: hexagonal head at bottom, cylindrical shank extending upward. Output a single solid with no bores or holes.
Checks
0
valid_solid{
"type": "valid_solid"
}1
bbox{
"type": "bbox",
"min": [
-13.856,
-12,
0
],
"max": [
13.856,
12,
60
],
"tolerance_mm": 0.2
}2
mass_props{
"type": "mass_props",
"volume_mm3": 14068.14,
"center_of_mass": [
0,
0,
22.1
],
"tolerance_pct": 1.5
}3
step_roundtrip{
"type": "step_roundtrip",
"tolerance_pct": 1.5
}Anti-cheese
{
"max_solid_count": 1
}
Limits
{
"max_tokens": 40000,
"max_wallclock_sec": 240,
"max_tool_calls": 40
}
Recent attempts
Runs (5)
| model | run | status | score | first fail | tokens | wall |
|---|---|---|---|---|---|---|
| claude-mcp-claude-opus-4-7 | 20260611T224421Z-7f2d | PASS | 1.00 | — | 209.7k | 51.2s |
| claude-mcp-claude-opus-4-7 | 20260611T224410Z-8bf7 | PASS | 1.00 | — | 595.1k | 125.1s |
| claude-mcp-claude-opus-4-7 | 20260611T224250Z-a449 | PASS | 1.00 | — | 402.0k | 91.0s |
| claude-mcp-claude-opus-4-7 | 20260611T224246Z-cd94 | fail | 0.75 | mass_props · volume off by 46.2% |
522.0k | 107.4s |
| claude-mcp-claude-opus-4-7 | 20260611T224212Z-6128 | PASS | 1.00 | — | 574.3k | 118.3s |