A servo operated lock, which can be used for treasure chests or similar applications.

A good web-site to design the box can be found here: http://www.makercase.com/

The computer is a BBC microbit (https://microbit.org/code/), I also added my file which requests the user to enter a code before the chest is unlocked, the code has been written using the kid-friendly pxt-editor.

Print instructions

Category: Tool Holders & Boxes Print Settings

Printer Brand: Prusa

Printer: i3 MK3

Rafts: No

Supports: No

Resolution: fine

Infill: 80%

Filament: Prusa PLA orange