Application of Additive Manufacturing in the Manufacture of Ophthalmic Frames

Abstract

This study examines the properties of recycled polyethylene terephthalate (PET) filament applied to the manufacture of ophthalmic frames by additive manufacturing. Applied research from a quantitative approach was used under the multi-criteria decision-elimination and choice (AHP) method, to determine the best material. The results allowed obtaining a customized frame in recycled polyethylene terephthalate (PET) based on anthropometric measurements. The study concludes that 3D printing applied in manufacturing processes is an excellent option that responds to the demand for the new and sustainable alternative materials for 3D printing filaments, facilitating product customization. In addition, the tests carried out on the frames show that it meets the requirements for dimensional stability, sweat resistance, resistance to ignition, and good properties considered in the data obtained in the flexion, tension and impact tests.