The PCB is made of three parts. The LED-PCBs are soldered at a right angle on top of the main PCB. The LEDs are charlieplexed. Two LEDs will light up one sheet of plexiglass. The glass itself is 0.5mm thick and 8x16mm wide. It's just a first proof of concept. I'll work on better light separation of the LEDs/glass plates by now.
Enjoy this project?