If you have $1,300 to drop on a gizmo that builds plastic prototypes of shoes, bracelets, piggy banks, and assorted knick-knacks, 3D Systems' new home printer will certainly put you on the cutting ...

[David] intended to 3D print a spectrogram of a gravity wave, and wanted the graph to go from blue to yellow. Only having a single-color printer, he needed color shift filament, but couldn’t ...