Another project roundup. The group has dissolved into three small groups, each one investigating one of the three possible techniques for building the 3d display. My group is investigating the diode technique, but the greatest challenge for this group right now is to find a large enough diode matrix in which the diodes can be individually controlled. It is possible that we will make one ourselves, but we are not fond of the idea to solder 20 000 LED:s to a board.