This machine, called the Extrusionbot, makes it able to make your own filament for a printer. With this machine is it possible to make the filament from different kind of materials. It saves time and money for a producer.
Abandoned pens and other such stationery stand a chance at purposeful usage, thanks to the Pen Printer. The device uses the ink from discarded pens to print on paper. The current tech may not support such an ambitious idea, but it’s worth the exploration,