MakerBot's 3D printing file catalog Thingiverse may finally be getting some real competition. DEFCAD is a brand new 3D print search engine launched by the Texas nonprofit organization Defense Distributed in response to MakerBot's purging of all 3D weapons files from its database in last December. Yesterday, DEFCAD's founder Cody Wilson released a new video calling for help in funding the new project, claiming the site will refrain from taking down any 3D files uploaded to the site.