According to @ai_darpa, a cutting-edge 3D printing method that integrates direct ink writing with up-conversion particles-assisted photopolymerization allows for the fabrication of ceramic structures that seemingly appear in midair. This innovative approach eliminates the need for support structures during the additive manufacturing process, streamlining production while expanding design flexibility. The AI-powered technology significantly reduces material waste and operational costs, offering new opportunities for advanced manufacturing in industries such as aerospace and medical devices (Source: @ai_darpa, Nov 24, 2025).