For most of us, 3D printing means printing in plastic of some sort — either filament or photo resin ... But instead of metal, he casts parts out of glass. [Amos] covers several techniques.

A tiny cube of transparent glass holds these 3D designs that are revealed when exposed to specific lasers. Credit: Adapted from ACS Energy Letters 2025, DOI: 10.1021/acsenergylett.5c00024 ...

The team first designed gallium silicate glass modified with magnesium and terbium ions by using a process called doped direct 3D lithography. Liao and the team used a green 532-nanometer ...