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