Additive Manufacturing Keychain

A keychain fidget toy built with print-in-place assembly, unique to additive manufacturing.

Print-in-place keychain with a four-slot knob slider

Date: Apr 2026
Context: Stanford ME227: Design for Additive Manufacturing
Discipline: design and manufacturing
Stack: Print-in-place 3D printing
Links: report (pdf) ↗

In Stanford’s ME227: Design for Additive Manufacturing, I designed and manufactured a keychain fidget toy featuring a 4-slot knob slider assembly, made with print-in-place additive manufacturing techniques.

The full write-up is in the project report (PDF).