## References

### Articles

- [The Plastic Recycling Process - Association of Plastic Recyclers (APR)](https://plasticsrecycling.org/how-recycling-works/the-plastic-recycling-process/)
- [Design for Recycling Guidelines - RecyClass](https://recyclass.eu/recyclability/design-for-recycling-guidelines/)
- [How To: DIY Pantry Recycling Center Makeover - ManMadeDIY](https://www.manmadediy.com/1255-how-to-diy-pantry-recycling-center-makeover/)
- [DeepStream Designs’ Sustainable Recycling Bins](https://sustainabledesignprinciples.com/tag/3form-recycling-bins/)
- [CNC Machining Techniques for Polypropylene Material](https://www.want.net/how-to-machine-polypropylene-material-a-complete-guide-for-cnc-fabrication/)
- [Custom Polypropylene Machining Considerations](https://machining-quote.com/polypropylene-machining/)

### YouTube

- [SAVE your recycling bins from the DUMP](https://www.youtube.com/watch?v=9yiADlR28z8)
- [How to Make Recycled BEAMS from Plastic Waste at Home](https://www.youtube.com/watch?v=avdOxtKywbk)

### Open-source Designs

- [$50 Plastic Shredder / Grinder / Recycler - Instructables](https://www.instructables.com/50-Plastic-Shredder-Grinder-Recycler/)
- [3Form Recycling Bin Design - Sustainable Design](https://sustainabledesignprinciples.com/tag/3form-recycling-bins/)

### Papers

- [Plastics Recycling: Challenges and Opportunities - PMC](https://pmc.ncbi.nlm.nih.gov/articles/PMC2873020/)