Wall, L. W., Jacobson, A., Vogel, D., & Schneider, O. (2021). Scrappy: Using Scrap Material as Infill to Make Fabrication More Sustainable Presented at the CHI ’21: Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems conference. https://doi.org/https://doi.org/10.1145/3411764.3445187 (Original work published 2021)