Read the following information articles on 3D printers: • http://handtoolsforfun.com/do-3d-printers-cause-cancer/ • http://handtoolsforfun.com/do-3d-printers-come-with-design-software/ • http://handtoolsforfun.com/do-3d-printers-emit-carbon-monoxide/ • http://handtoolsforfun.com/do-3d-printers-need-ventilation/
