Following the Barcelona Zero Emissions project, the MAA students are working on digital modeling and production of a 1:2000 model of the entire Barcelona city. This model is a working prototype for proposals on a Zero emissions city, as well as the base physical model for the development of an interactive interface of Barcelona that will provide and receive information coming from research data based obtained by students on site. MAA students are making night shifts to cover the entire production of the city, mainly fabricated with the CNC Milling machine at the Fab Lab.