To make your own filament, you need to take bulk plastic pellets (which cost just a few dollars per kilogram), melt them, form the molten plastic into a long continuous strand, and then wind that strand around a spool right as it finishes cooling.

It is essential to ensure that the PLA waste is clean and free of contaminants before shredding to maintain the quality of the recycled material. Once the PLA waste has been shredded, it can be fed into a filament extruder, which melts the material and extrudes it through a nozzle to form a continuous filament.

Filament extruders are revolutionary machines that play an important role in the world of 3D printing. Imagine having the power to transform plastic pellets into high-quality plastic wires, commonly known as filaments, at your fingertips. That's precisely what a filament extruder does.