Finally my birthday present arrived: the Cube4, a 4x4x4 RGB LED cube by freetronics.The assembly was rather simple due to the good instructions an the freetronics site and the detailed video. Because I've been a little impatient, the cube is not 100% rectangular. The first own skteches were no problem. It's a lot of fun to view the colourful cube.
Unfortunatly I cannot upload sketches since yesterday evening. I'm in contact with John from freetronics. So a word concerning the support of freetronics: wonderful! Quick and competent.
If everything will work again, I will post a video.