3D/4D PRINTING METHODS: Progressive approach, according to the maturity of the market and technologies, of the following 3D/4D printing methods: Fused filament fabrication; Sintering; Photopolymerization; Others. 3D/4D MATERIALS DEVELOPING STRATEGY Applied and Fundamental Research for new, Inteligent (Shape memory) / Active / Structurated Multi-phase materials for 3D / 4D printing obtained through intercorreration of polymers science with engineering macromolecules principles; New renewable materials compatible with 3D /4D printing for sustainable applications in good agreement with the new economy of plastics regarding the transition from fossil carbon to renewable those, in durable applications Developing new materials for new printing systems, and printing products of commercial interest New materials for printing with increasing resolutions complex shapes, growing in size. New possibilities for reaching, highly functional products, with complex surfaces, through 3D/4D printing.