Holographic 3D Printing Creates Complex Objects in Seconds
For decades, additive manufacturing has been defined by its methodical patience. Layer by layer, micron by micron, 3D printers have built structures that traditional subtractive manufacturing could never easily produce. Yet speed has always been the trade-off. Resolution improves as time increases. Precision demands patience. Engineers have long accepted this compromise as fundamental to the physics of fabrication. Now, researchers at Tsinghua University have introduced a breakthrough that challenges that assumption at its core. Their system, called Digital Incoherent Synthesis of Holographic light fields (DISH), abandons the layered paradigm entirely. Instead of stacking material incrementally, it projects a fully formed … Read more