Made by hand, inspired by mechanical thinking, assembled with care:
-1mm Brass, Handmade. -Secret mechanical lock. -USB 3.0 interface inside (HDD sata-to-USB3 converter or +HDD drive).
You can ask about anything except how lock work:this is my small secret.
And video from my Instagram page
Partial draft drawings on step3
Step 1: Some Parts and Contracting Issues
1. 1-1.5 mm brass
2. Cut all parts using scissors/ saw/ cutter/ laser or any other cutting method
3. Drill 6 holes (4 holes for fixing HDD and 2 holes for dor with lock)
4. Solder parts...
5. Engrav/ decorate