forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
6bd52c0b29
file.sample crank-arm: a 170 mm 6061-T6 crank built in SolidCraft (crates/engine/samples/crank-arm.json), swept along z by mesh.hex.generate as 7274 hex20 elements of 3 mm (scaled Jacobian min 0.17). The hex variant drops the pocket floor fillet and boss chamfers, and its root arcs meet the bosses 20 degrees off tangent so the arm's top face has no zero-angle cusp. The square bore is fixed and 1500 N acts on the pedal hole; the faces are picked by their surfaces, not their names. Its heavy test matches the root bending stress to M/Z = 62.6 MPa within 3 % (0.3 % in practice). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo