Recycling Code System

These OpenSCAD designs help you to put detailed recycling information into your 3D designs.

For detailed information see the paper: Emily J. Hunt, Chenlong Zhang, Nick Anzalone, Joshua M. Pearce, [Polymer recycling codes for distributed manufacturing with 3-D printers](https://www.academia.edu/11229348/Polymer_recycling_codes_for_distributed_manufacturing_with_3-D_printers), Resources, Conservation and Recycling, 97, pp. 24-30 (2015).

The current limited resin identification code available in the U.S. restricts closing the loop on less popular polymers, which could hamper the environmental impact benefits of distributed manufacturing with 3D printers. This paper provides a solution for this challenge by (1) developing a recycling code model based off of the resin identification codes developed in China that is capable of expansion as more complex 3-D printing materials are introduced, (2) creating OpenSCAD scripts based on (1) to be used to print resin identification codes into