179. 3D Printed Mini Thrusters For Space Travel
Hosts Daniel and Forbode discuss MIT researchers' development of miniaturized electric space thrusters using field electron emitters (FEEs) manufactured by the startup Volterra. They explain how Volterra's Nova desktop 3D printer, combined with a custom carbon nanotube ink formulation, overcomes the high cost and long lead times of traditional cleanroom manufacturing. The team achieved 35% lower startup voltage and 65% higher current density than previous 3D-printed counterparts, enabling rapid 30-second production of high-performance components for CubeSats and scientific instruments.