ARTICLE Micro and nanoscale 3D printing using optical pickup unit from a gaming console Tien-Jen Chang 1✉, Lukas Vaut1, Martin Voss1, Oleksii Ilchenko 1, Line Hagner Nielsen1, Anja Boisen 1 & En-Te Hwu1 Conventional photopolymerization-based 3D printing still requires developing a concise and cost-effective method to improve the printing resolution at the nanoscale. Here, we propose the use of a g