We know you’ve seen them: the time-lapses that show a 3D print coming together layer-by-layer without the extruder taking up half the frame. It takes a little extra work compared to just pointing a ...

Physicists 3D-printed an ice Christmas tree using only water and a vacuum, but no refrigeration. Time-lapse shows it printing, then melting when the pump stops. (Nanowerk News) The secret of the tree ...