Tackling ♻️E-Waste with 💧DissolvPCB E-waste is a global crisis. But for many engineers and designers, it can feel out of reach. We create electronics every day, yet the end-of-life impact often goes unaddressed. Our new #UIST2025 paper takes a step toward changing that. DissolvPCB is a fabrication method for fully recyclable printed circuit boards that can be produced with any off-the-shelf FDM 3D printer. It uses PVA as the substrate and EGaIn as the conductor material. 🪦 At the end of its life, the PCB simply goes into water. The PVA dissolves, the EGaIn gathers into a reusable liquid metal bead, and components are fully recovered. These materials can then be reused to fabricate another PCB, closing the loop. 🛠 DissolvPCB works with through-hole and surface-mount components, supports single- and double-sided boards, and can be extended to 3D form factors or even 4D printing. 💻 We have also released an open-source KiCAD-based EDA tool to make adoption easy. Software: github.com/zyyan20h/DissolvP… 📄 Paper preprint: smartlab.cs.umd.edu/assets/p… Led by @ZYYan20H and Suhwan Hong, with amazing collaborators @ProfJosiah and @cheng_tingyu. 🤔 What if every PCB we designed could have a second life?