v1 Accessory Box — Risk Analysis
This page assesses the risks specific to the v1 accessory box. It is a passive, non-powered, 3D-printed storage box built on the OpenPoleMount mounting block.
General-purpose hardware — no medical function
The v1 accessory box is general-purpose mounting hardware with no medical function — it holds small personal items and supplies. It is not a medical device. The only hazard category is mechanical. See the Safety & Disclaimer.
Shared clamp risks
The v1 box 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) of contents, as a conservative starting point at the recommended print settings. Do not overfill.
v1-specific hazards
| # | Hazard | Cause | Effect | Mitigation |
|---|---|---|---|---|
| 1 | Contents fall out | Box overfilled or tilted; loose small items | Items drop to the floor | Keep contents within the box; don't overfill above the rim; store small loose items in a bag inside the box. |
| 2 | Overloaded box | Contents heavier than the load rating | Box or clamp strain over time | Stay within ~1.4 kg of contents; use PETG for heavier or sustained loads. |
| 3 | Used as a device cradle | Mistaking the box for an equipment cradle | A seated device's front face is not accessible in the v1 pocket | Use v1 only as a storage box; for holding a device with its controls accessible, use v3 or v2. |
| 4 | Snag/knock | Box protrudes from the pole | Bumped in a walkway | Mount below the cradle and clear of walkways; keep the pole base stable. |
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 |
| Box contents | Items fall if overfilled/tilted | Visible | Low with sensible loading |
| 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.