Develop a Machine to Convert Waste Plastic Into 3D Printer Filament

Plastic waste has become one of the most pressing environmental challenges of modern society, contributing to pollution and resource depletion. At the same time, additive manufacturing technologies such as 3D printing are rapidly expanding, creating demand for affordable and sustainable filament materials. This research focuses on the design and development of a machine capable of converting post-consumer plastic waste into usable 3D printer filament. The proposed system integrates mechanical shredding, extrusion, and filament calibration processes to transform discarded plastic into high-quality filament with consistent diameter and strength. By utilizing locally available waste plastics, the machine reduces environmental impact while lowering the cost of 3D printing materials. Experimental trials demonstrate that the recycled filament maintains adequate mechanical properties for prototyping and functional applications. The project highlights the dual benefits of waste management and resource recovery, offering a practical solution for sustainable manufacturing. Future scope includes optimizing the machine for different types of plastics, improving filament quality control, and scaling the system for community-level adoption.