3D printing has been at a tipping point seemingly forever, disappointing investors as promises to go mainstream met with only modest success
However, mutually supporting technological advances in computer aided design and 3D printing software, scanning and measurement, and novel 3D printing materials may portend an exciting future
The transition from 3D prototyping and modest runs to industrial production capacity of sizable items takes place at a time when materials multiply the options from 3D-print of intricate resins to 3D printing of concrete (with robots automating the poring process)
Large scale 3D-printed metals implement a variety of technologies – from fused deposition by heated nozzles to laser welded metal wire (fed by a robotic arm) to metal powders bound by liquid glue (sintered at a later stage)
Still very much a work-in-progress, research focuses on 3D manufacturing processes and on the strength of micro-structures using new alloys
To invest in 3D, the safest bet will be found either in large diversified companies - PTC of the US