The 3DEVO extruder is pretty slick ... In concept, any machine that creates filament is pretty straightforward. Melt pellets and push them out of a nozzle. Cool the filament and wind it up.

The heart of the printer is a commercial Massive Dimension MDPH2 pellet extruder, capable of extruding ... built from C-beam aluminum extrusions. A machine this size needs to be very rigid ...

Plastic bags are made through a process that starts with raw materials such as polyethylene pellets. These pellets are fed into an extrusion machine, where they are heated and melted into a uniform ...