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3D & 4D DLP Printing with Functionally Graded Materials

In ‘ Grayscale digital light processing 3D printing for highly functionally graded materials ,’ Chinese researchers make it clear that 3D printing has a long way to go for producing excellence in parts without significant investment and engineering. In looking toward biological structures, the authors suggest that functionally graded materials (FGMs) can improve mechanical properties of 3D printed objects. In assessing previous studies, they also settled on DLP 3D printing as the most promising method—especially for creating multi-material parts. In this study, the researchers explain how they created a new 3D printing ink, used in grayscale printing with the single-vat grayscale DLP (g-DLP). The ink is meant to serve as the material for fabrication of highly tunable property gradients. Cured with grayscale light patterns that form the 3D printed structure, the object is cured a second time to ‘eliminate most of the residual monomers’ and improve mechanical properties. Ultimately, […]


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