The scanner uses a NXT controller, Lego pieces and modifications to connect the laser reader to the software. The results are incredibly good. These are the scanned pieces, in the 3D CAD software LDraw:

I love the idea of Lego scanning Lego to create Lego. You know where all this is going: It involves paradoxes, judgment day, bleeding goats and inter-dimensional portals. [Brothers Brick]