Learn how to transform unwanted 3D prints and household plastics into eco-friendly 3D printer filament in this 39-minute video tutorial. Explore the process of recycling plastic, including shredding, extruding, and pelletizing techniques. Discover the challenges and solutions for working with different types of plastics, such as PLA and PET. Gain insights into the economics of recycling and the potential for creating sustainable 3D printing materials. Follow along as the instructor demonstrates each step, from grinding up old parts to producing a constant diameter fiber suitable for 3D printing or other thermoplastic applications.