Cradle v2 — Risk Analysis
This page assesses the risks specific to the v2 universal holder. It is a passive, non-powered, 3D-printed part built on the OpenPoleMount mounting block.
General-purpose hardware
The v2 holder is general-purpose mounting hardware — not a medical device. No electrical, chemical, or software function; no patient contact; no role in delivering or controlling therapy. The only hazard category is mechanical. See the Safety & Disclaimer.
Shared clamp risks
The v2 holder attaches with the same block-and-thumbscrew clamp as every OpenPoleMount design. Those load-bearing hazards (slip, overload, thumbscrew over-tightening, weak/mis-oriented print, material creep) and their mitigations are covered once in the Mounting Block Risk Analysis — read it alongside this page.
Load rating
Recommended working load: up to ~1.4 kg (3 lb), as a conservative starting point at the recommended print settings. Verify safe support of your own load first.
v2-specific hazards
| # | Hazard | Cause | Effect | Mitigation |
|---|---|---|---|---|
| 1 | Object rocks or shifts in the pocket | v2's pocket is open and general-purpose, not fitted to one object | Movement under load; object could tip out if loose | Test-fit before relying on it. There is no confirmed compatibility list. If loose, add padding/shim, reprint scaled, or use the form-fitting v3. |
| 2 | Oversized object | Object larger than the pocket | Does not seat | Confirm your object fits the pocket envelope (~126 × 105 × 65 mm printed) before use. |
| 3 | Object falls when unclamped/handled | Open pocket does not capture the object | Drop during install/removal | Support the object by hand when placing or removing; do not rely on the pocket alone until seated and checked. |
| 4 | Cabling strain | Cable/tubing routed under tension | Pull on the mount or object | Route cabling with slack (see Assembly). |
Evidence
The load-bearing clamp was validated in destruction testing, which was performed on the v1/v2 body shape: a deliberately under-spec print never failed under normal load, the failure mode was safe and visible, and the broken mount retained residual grip.
Points of failure
| Point | Consequence | Detectability | Net risk |
|---|---|---|---|
| Block/thumbscrew clamp | See block analysis | Visible; residual grip | Low with correct install |
| Open pocket fit | Object rocks/tips if loose | Felt on test-fit and load test | Low–moderate; test-fit is essential |
| Print integrity | Weak part if settings/orientation wrong | Inspection + hand flex-test | Low with adherence to print guide |
Informational only; not engineering certification or regulatory approval. See the Safety & Disclaimer.