ENGINEERING AUDIT
What has actually been checked?
Mechanism STEP solid checks found no positive-volume penetration among 36 pairs, but the full original spine-to-mechanism interface remains unresolved.
FIVE WHITE-GRID CONCEPT PLATES
How the structure takes shape.
Orthographic proportions
Conceptual proportions are visual communication, not measured dimensional inspection.
Exploded architecture
The layer order suggests a transducer, contact pad, mechanical carrier and rear electronics.
Internal section
The proposed battery and PCB layout needs actual vendor envelopes and wire routing.
Contact position study
The nominal -3 / 0 / +3 mm idea is not an acoustically validated optimum.
Dimensions and material directions
Rigid polymer and silicone are proposed; hardness, fatigue and tolerance stacks are unverified.
Interactive engineering STL
Drag to rotate. Scroll to zoom. This is the actual layout-review STL, not the AI image.
Loading Three.js and STL…
The STL viewer needs HTTP(S) hosting and network access to the Three.js CDN. It will not reliably work from file://. The STEP contains positioned mechanisms, not the full curved spine.