Smart 3D Volumetric Printing

In volumetric additive manufacturing, an entire three-dimensional object is simultaneously solidified by irradiating a liquid photopolymer volume from multiple angles with dynamic light patterns. Because this technique is based on 3D light dose accumulation, it is well suited for a control feedback loop, whereby the 3D dose is adjusted while the part is forming. We call this "intelligent" as it is controlling the part making process. We show the implementation of such a feedback loop and demonstrate experimentally a substantial gain in part fidelity.