Keep the collar captured.

Research record

The detail behind
the study.

Source-linked work for this revision. Reported checks describe the stated model or test; physical qualification and applicability to the current retrofit remain separate.

The R1 retaining ring touched a cylindrical body without an axial seating groove. R2 introduces a groove, a seated custom C-ring and controlled collar-flange relief. This closes a nominal geometric retention gap in the connector. It does not establish a pull-load rating.

Geometry now supplied

complete-termination.step : complete 457-solid cable and connector with the revised retention parts integrated.

retention-assembly.step : eight-body mechanical subset for inspecting the retention and bayonet interface.

inspection.blend and ring-access.blend : native CAD-derived render scenes. The second view displaces the retaining ring 16 mm axially for visibility; this is an explanatory pose, not a demonstrated installation motion.

Nominal development dimensions

All coordinates use the cable's original local Z axis, not the rotated presentation view. These are nominal CAD dimensions, not toleranced released drawings. The centered-ring pose has 0.15 mm nominal collar clearance on each side; ring freedom changes that clearance. The supplemental restraint check moves the ring to its forward groove limit and still finds collar restraint at +0.5 mm displacement. No load capacity follows from interference volume.

Verification

The generation records 172 passing checks, including separate-body validity, nominal interference, positive axial interference at the collar stops, sampled collar installation, sampled 30-degree bayonet rotation and axial approach, and both STEP round trips. Two focused pytest tests pass. Copied-source regeneration matches all 465 STEP solids across the subset and integrated exports by individual Boolean symmetric difference. Both native renders were reopened and their mesh vertices checked within 0.001 mm; the images were visually reviewed. The supplementary floating-ring check passes. The complete R2 repository regression passed:346 tests in1955.40 seconds, terminal exit0. It predates later revision tests.

The motion samples establish nominal configurations, not a continuous swept-volume or tolerance proof. Wrong-class keys, cable conductors and contact allocations retain the R1 study basis.

Required engineering still open

The ring is a custom geometric envelope. Select material/process or replace it with a verified supplier part, then design installation tooling, installation deflection, fatigue and axial capacity. The collar installation path is modeled with the ring absent; the ring's actual expansion and tool access are not yet qualified. The bayonet needs deliberate detent/preload and verified stud attachment. Seal compression, contact spring/termination design, jacket anchorage, complete tolerance stacks and environmental/electrical tests remain open. No energized wet mating, immersion rating or manufacturing release is established by this revision.

Complete connector + cable STEP · Retention subset STEP