Sundials aren’t exactly obsolete. Mojoptix aims to bring them back with a contemporary twist using 3D printing.
Shadows and a 3D printer are all you need to create this amazing project. During the different times of day as the Sun moves about, the shadow cast through the carefully-placed perforations in the device displays digital time in 20-minute increments. One of the limitations of the device is that it only works between 10 am to 4 pm in the day.