Core Insights - A new 3D printing technology developed by a research team at the Swiss Federal Institute of Technology in Lausanne allows for the creation of complex, high-strength, and high-density metal and ceramic components using ordinary hydrogels, overcoming the limitations of traditional photopolymer-based printing methods [1][2] - The innovative approach involves printing a shape first and then selecting the material, which enhances manufacturing flexibility and enables the production of customized products with complex functionalities [3] Group 1 - The new technology enables the printing of complex lattice structures made from iron, silver, and copper, which are ideal for aerospace and energy applications due to their high specific strength and intricate geometries [2] - The new materials can withstand pressures 20 times greater than those produced by traditional methods, with a shrinkage rate of only 20%, significantly lower than the 60%-90% shrinkage seen in conventional techniques [2] Group 2 - This 3D printing process represents a shift from "manufacturing parts" to "growing functions," potentially transforming industries such as aerospace, biomedical, and robotics [3]