eNano Technologies · 2025
Micro BLE Asset Tracker
A sub-12 mm enclosure built around flexible electronics
Overview
An ultra-compact consumer enclosure designed around a flexible PCB, coin cell, copper antenna, and the practical limits of small-scale additive manufacturing.
01
Packaging was the product
I led the mechanical design of the enclosure in Onshape. The profile uses tapered surfaces to redirect loads while keeping the tracker flat, and every internal choice was driven by the flexible PCB, antenna, battery, and minimum printable feature size.
Compact shell geometry surrounding the electronics stack.
02
Prototype, fail small, refine
Early annular snap-fits worked at enlarged scale but failed at final size. I moved to a circular enclosure, tuned SLA tolerances, and used simulation to study static and adhesive loads so the shell protected the electronics without unnecessary material.
Iterative printed prototypes and fit studies.
Project gallery
Tools & methods