I've created a guide/list/catalogue of current and "historical" 3D printed gun designs. The first "rough draft" only have 9 designs, one of which I have been informed does not work. However, that said, please read and provide feedback on my guide and let me know if there are any changes I could make.
This guide currently does not include receivers, only completely or mostly printed firearms designed specifically for printing.
I am also very interested if there were any printed firearm designs before the Liberator which either failed or were never tested. If you know of any please let me know.
Link to the Guide: http://www.sendspace.com/file/xagtfv