Key Points: Researchers developed the first chip-based 3D printer. The millimeter-scale photonic chip emits reconfigurable light beams to cure resin into solid shapes. The printer combines silicon photonics and photochemistry for rapid 3D printing. Could revolutionize medical device creation and rapid prototyping. Aims to develop a chip that projects a 3D hologram for volumetric printing—a collaboration between MIT and UT Austin. The research appeared in Nature Light Science and Applications and was supported by various U.S. foundations and fellowships. Imagine...