Cast oval flanged bearing housing as one connected solid.
| File | Kind | Size |
|---|---|---|
| bearing-housing.step | STEP | 0.2 MB |
| bearing-housing.stl | STL | 0.4 MB |
contract.yaml (design contract)
Cast oval flanged bearing housing (the housing alone, no bearing or screws), one connected solid in millimetres. Flange = convex hull of a D57 circle at the origin and two D22 lobes at (+-38.25, 0), 11 thick; D57 boss to z = 26; every side face drafted inward 4 deg about the neutral plane z = 0; every edge of the drafted body rounded r = 1 before any hole is cut; D47 x 14 counterbore from the boss top over a D14 through bore; two D10 through mounting holes at (+-38.25, 0). The authoritative source is sources/bearing-housing-spec.md (parameters, construction and reference measurements); the three renders are illustrative.
| Tier | Gate | Result | Evidence |
|---|---|---|---|
| A | contract_provenance Contract validates; stated/measured sources resolve to bundle files; no blocking open questions; interfaces pinned by checks | PASS | designs/bearing-housing/contract.yaml: 12 parameters {'stated': 11, 'derived': 1}; sources unresolved {}; unanchored 11 |
| A | envelope Bounding box of the exported STEP equals the contract envelope | PASS | results/cadquery/bearing-housing/inspect.json bbox.max_error = 0.0001 (tol 0.05) |
| A | mass_properties Volume, surface area and centre of mass within contract tolerance (independent STEP measurement) | PASS | results/cadquery/bearing-housing/inspect.json volume = 46881.5819 vs 46881.3 |
| A | features Every required feature, section, named face, cylinder axis, plane, dimension, body, clearance, passage, wall, gear and symmetry check verified on the STEP | PASS | results/cadquery/bearing-housing/inspect.json features: 7/7 ok; failed required []; failed optional []; unverified [] |
| A | reference_fidelity Deviation from the reference model within the contract band (when a reference exists) | n/a | results/cadquery/bearing-housing/inspect.json deviation.p95 = None hausdorff = None silhouette_iou_min = None |
| B | export_agreement Engine, STEP (OpenCascade) and STL (trimesh) volumes agree | PASS | results/cadquery/bearing-housing/inspect.json agreement engine=46881.62063247913 step=46881.58186468699 stl=46689.28509873177 (rel tol 0.002; independent=False) |
| B | edit_robustness Declared parameter edits rebuild with the expected effect, undriven interfaces stay put, sweeps regenerate, infeasible values are refused; baseline re-export hash unchanged | PASS | results/cadquery/bearing-housing/edit.json 2/2 edit tests ok; restore.ok = True |
| B | source_hygiene Dialect, units, formatted, lint-clean, named parameters match the contract, asserts present | PASS | results/cadquery/bearing-housing/verify.json hygiene: dialect=True unit=True legacy=[] params_ok=True asserts=9 |
| C | export_integrity Deterministic STEP (two exports identical), valid B-rep, expected solid count, watertight STL (solid shells == solids) | PASS | results/cadquery/bearing-housing/export.json step.deterministic = True sha256 b95660b8e06f; stl=present; glb=present |
| C | traceability Every stage JSON present with tool versions, git head, worker thread ids, engine-call ledger; no --allow-errors | PASS | stages present: {'plan': True, 'model': True, 'verify': True, 'export': True, 'inspect': True, 'edit': True} |
| C | evidence_separation Contract agreement, reference agreement and physical validation are reported as separate verdicts | PASS | results/cadquery/bearing-housing/inspect.json carries contract checks (volume/bbox/features) and a separate deviation block (reference = None) |
| C | independence The source is editable construction: no import of reference geometry, construction ops present, no traced geometry | PASS | results/cadquery/bearing-housing/verify.json hygiene.forbidden_imports = [] construction_ops = {'calls': 24, 'has_result': True} lines = 81 |