inki 4.2" case Freecad

https://github.com/c0de111/inki inki is a battery-powered, energy-efficient system for ePaper-based display of information gathered via Wi-Fi, used as for instance in combination with the [SeatSurfing](https://github.com/seatsurfing) desk sharing tool. It features RTC-based power control allowing for low power consumption, the project includes 3D-printed case, and a custom PCB.