Researchers have demonstrated 3D printed cubic microbubbles with enclosed, ultra-thin walls and extreme aspect ratios.
cavities
Thin-Film DLP Achieves Sealed Voids, Multi-Material Parts
Researchers unveiled a vat-free thin-film DLP method that can print sealed cavities and clean multi-material parts.
IBM Patents Smarter Hollow Fill 3D Printing
IBM is exploring a way to turn empty 3D printed cavities into engineered features instead of unused air.