29/05/2026
This project was built as a modular system rather than a single printed part.
The rigid shell handles structural support.
The TPU insert handles flexibility, contact surfaces, and user comfort.
Separating the components changed the entire manufacturing workflow:
• easier assembly
• easier iteration
• easier replacement of wear components
• better material optimization
The soft TPU liner was designed as its own functional component not as an afterthought.
Specification → constraints → material decisions → geometry.
That sequence matters.