For all those who wanted to build an LED cube, this is your lucky day. Nick Schulze has posted the entire design on his website for all to enjoy. For you Arduino fanatics, guess what runs this project.
The light control is powered by Matlab. To be honest, this is one of the few time I have seen Matlab used in a project during my whole professional career. All code for Matlab is also on his site.
I have never found a definitive LED light cube design tutorial anywhere on the net. Schulze's page explains the concept in depth. Though, I still think the concept is not fully described as well as I would like. But if you build one from this project page, you will know.