Transform empty PET bottles into high-quality 3D printer filament with the Updated PET Bottle-to-Filament Cutter & Extruder Device—a complete, eco-conscious filament-making system. Perfect for DIY enthusiasts, makers, and sustainability advocates.
This updated version builds upon successful open-source designs like PETFusion 2.0, offering enhanced cutting, efficient extrusion, and seamless operation
Product Highlights:
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Motorized PET Bottle Cutter: Efficiently slices bottles into uniform strips (~5–12 mm), ready for extrusion .
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Dual Hotend Extruder: Simultaneously processes two PET strips for faster filament output—creates standard 1.75 mm filament .
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Integrated Filament Welder: Splices shorter PET segments into continuous filament spools .
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Ink-Based Colorizer (optional): Adds custom colors mid-extrusion for vibrant reel personalization .
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Spooling System: Pull & wind mechanism ensures consistent tension and smooth filament winding .
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DIY-Friendly: Based on open-source hardware like RePET Compact and Recreator 3D—printable designs and parts list included .
Why Choose This Updated Model:
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Eco-Conscious: Upcycles plastic waste into functional filament—a sustainable alternative to commercial filaments.
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Cost-Effective: Use free PET bottle material; just add printable parts and electronics.
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Modular & Stackable: Scalable design lets you add bottles or extruders for faster output.
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Open-Source Innovation: Enjoy editable STL files and community-driven improvements.
Specs (Typical Builds):
| Feature | Updated Version |
|---|---|
| Cutter Width | Adjustable 5–12 mm |
| Extruded Filament | 1.75 mm (±0.05 mm) |
| Output Rate | ~19 m per 5-liter bottle (RePET Compact) |
| Materials | PET bottles, PLA/PETG printable parts, basic electronics |
| Electronics | Hotend, stepper motor, fans, heating cartridge, control board |
| Assembly | Requires basic tools and gluing; no soldering for some kits |
Start your home filament revolution with this updated PET recycling machine—where DIY meets sustainability and practicality.






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