I am Not an Object: Reframing 3D Body Scanning for Co-Design

3D scanning technologies provide designers with tools to generate a digital representation of the human body that can be used in the design of ultra-personalized apparel and wearables. However, prior work shows that the body scanning process can be an uncomfortable experience for users. In this work, we take a first-person perspective to identify frictions in the experience of being body scanned compared to having one's body measurements taken by a professional tailor. Based on our findings, we offer a reframing of body scanning as a collaborative process, and discuss implications for the design of tools and processes that shift agency in the generation of body data towards users. Our paper is relevant to design researchers and practitioners interested in taking a co-design approach to ultra-personalization.