Fig. 3: Filament production and fused-filament fabrication.
From: Performance polyamides built on a sustainable carbohydrate core
a, Filament production via extrusion in a filament maker. b, The produced filament. c, Filament diameter measured over the course of the filament extrusion. d, Printing of an iPhone 11 pro case. e,f, The final 3D-printed phone case.
