Facebook Twitter LinkedIn Whatsapp 4D Printing 15 May 2013 Engineering Product Development Active composites and devices by 3D printing Martin Dunn Expanding the potential of its 3D counterpart, 4D Printing transcends into the 4th dimension - time. By allowing the printing of 3D objects that can change in shape and configuration over time, 4D Printing is set to transform aerospace structures, toys and other products we use in our everyday lives.