← mecheval. / task / a1-stepped-shaft-01
Stepped shaft A · A1 · a1-stepped-shaft-01
primitives · boolean · axisymmetric
Prompt
Make a stepped shaft along the Z axis: a base cylinder of diameter 40mm and height 10mm sitting on the XY plane (z = 0 to z = 10), with a smaller coaxial cylinder of diameter 20mm and height 15mm stacked directly on top (z = 10 to z = 25). The result is a single solid.
Checks
0
valid_solid{
"type": "valid_solid"
}1
bbox{
"type": "bbox",
"min": [
-20,
-20,
0
],
"max": [
20,
20,
25
],
"tolerance_mm": 0.1
}2
mass_props{
"type": "mass_props",
"volume_mm3": 17278.76,
"tolerance_pct": 1
}3
step_roundtrip{
"type": "step_roundtrip",
"tolerance_pct": 1
}Anti-cheese
{
"max_solid_count": 1
}
Limits
{
"max_tokens": 30000,
"max_wallclock_sec": 180,
"max_tool_calls": 30
}
Recent attempts
Runs (6)
| model | run | status | score | tokens | wall |
|---|---|---|---|---|---|
| claude-direct-claude-opus-4-7 | 20260428T153537Z-33d7 | PASS | 1.00 | 1.2k | 3.4s |
| claude-direct-claude-opus-4-7 | 20260428T153525Z-8710 | PASS | 1.00 | 1.1k | 5.0s |
| claude-direct-claude-opus-4-7 | 20260428T153513Z-ab32 | PASS | 1.00 | 1.2k | 3.4s |
| claude-mcp-claude-opus-4-7 | 20260428T145724Z-9051 | PASS | 1.00 | 402.2k | 69.4s |
| claude-direct-claude-opus-4-7 | 20260428T142500Z-3bc3 | PASS | 1.00 | 1.2k | 3.6s |
| claude-direct-claude-opus-4-7 | 20260428T141639Z-92f3 | PASS | 1.00 | 1.2k | 3.9s |
| drawing mecheval. |
sheet TASK · a1-stepped-shaft-01 |
scale 6 runs |
| date 2026-04-28 |
drawn by muni |
project mecheval |