ExtrudeX
A compact recycling machine converting PET plastic waste into 3D printing filament through integrated shredding, filtering, melting, and extrusion.
Design Brief
Developed as part of a third-year academic project, ExtrudeX is a compact recycling machine that converts PET plastic waste into usable 3D printing filament through an integrated shredding, filtering, melting, and extrusion process.
Aimed at promoting sustainability and cost-efficiency, the machine offers an environmentally friendly solution for makers, educational institutions, and small-scale users by encouraging the reuse of plastic through additive manufacturing.
To design a compact and efficient machine that enables institutions to convert PET bottle waste into high-quality 3D printing filament through an integrated recycling process.
Research & Problem
India faces a massive plastic waste challenge — existing solutions focus only on shredding, leaving a gap in end-to-end recycling.
860K+
Tons of PET bottles produced in India (2023)
280K
Tonnes of PET bottles go uncollected annually
~0%
Solutions addressing full recycling pipeline
Problem Statement
Despite high recycling rates, most existing solutions only address the shredding stage of plastic recycling. The recycling process remains time-consuming, and plastic bottle waste continues to be a significant pollutant. There is no compact, integrated solution for converting PET waste directly into usable 3D printing filament.
How It Works
Four integrated stages transform PET bottle waste into high-quality 3D printing filament.
Shredding
PET bottles are fed through the inlet flap and shredded into small flakes by the integrated shredder mechanism.
Filtering
Plastic flakes are cleaned and filtered through a 4mm mesh to ensure consistent particle size for melting.
Melting
Filtered flakes are heated and melted into a molten state, ready for extrusion through the die.
Extruding
Molten plastic is extruded through a precision die and wound onto a spool as usable 3D printing filament.
Key Features
Inlet Flap
Safe, controlled feeding mechanism for PET bottles
4mm Filter
Precision filtering ensures consistent flake size for quality filament
Stainless Steel Legs
Durable, corrosion-resistant frame for industrial environments
LCD Display
Real-time monitoring of temperature, speed, and process status
Filament Spool Compartment
Integrated winding system for neat filament collection
Cooling Vents
Thermal management for sustained operation
Final Design
Sustainability Impact
ExtrudeX promotes circular economy principles by transforming waste into a valuable resource for additive manufacturing.
Waste Reduction
Diverts PET plastic from landfills and waterways by converting it into usable material
Cost Efficiency
Reduces the cost of 3D printing filament by utilizing locally sourced waste plastic
Education
Provides makers, schools, and institutions with a hands-on sustainability tool