This is not some thing new, but very awesome project. It's not hard to build, every thing can preassembled except the leds. I build 2 cube column each day and asked the supplier to help me solder the PCB, the power supply are plastic case. Firmware uploaded smoothly. You can get the full instructions here: http://www.instructables.com/id/Assembly-the-RGB-8x8x8-LED-CUBE/
The fun is to draw animation with animation editor/software.
