I was looking at the parts on the technical drawings and the laser cutting DXF files trying to put together a LONG list of parts to order and there seems to be a difference in the number of cutting blades in the two lists .. the laser cutting files say 5 of each of the three indexed shredding knives but 13 fixed blades and 13 of the 6mm blade spacers. And in the technical drawings the overviews show 5 each of type 1 and 2 shredding knife and only 4 of type 3 shredding knife. Is there a correction or change that I am missing or did I download the wrong .zip file??