Carbon-fiber epoxy honeycombs

Left: Optical image of 3D printing of a triangular honeycomb composite. Right: Schematic illustration of the progressive alignment of high-aspect-ratio fillers within the nozzle during composite ink deposition. (Images courtesy of Brett G. Compton, Harvard University.)

Carbon-fiber epoxy honeycombs mimic the material performance of balsa wood

Harvard Engineers Use New Resin Inks and 3D Printing to Construct Lightweight Cellular Composites In