Space Pump: Repairable 3D‐Printed Bioinspired Pneumatic Peristaltic Pump for Fluid and Regolith Transport in Space

Efficient media transport is crucial for organismal development and system efficiency in both natural and technological contexts. The peristaltic pumping principle, exemplified by the human esophagus, serves as a versatile model for various applications. Based on this principle, this study presents the development of a 3D‐printed biomimetic peristaltic pump (3BPP), utilizing flexible materials and fused filament fabrication (FFF) for airtight construction. The 3BPP, consisting of eight pneumatic ring actuators, demonstrated its capability to transport liquids and solids, even under vacuum conditions. Investigating the impact of operating speed and peristaltic patterns on pumping performance, the study evaluated the pump's suitability for critical infrastructure in especially a lunar‐based environment. Notably, the 3BPP achieved flow rates exceeding 350 L/h for water and 250 kg/h under atmospheric conditions, demonstrating its self‐priming capability. Furthermore, the study introduced two thermal repair methods for flexible 3D‐printed pneumatic demonstrators, enhancing their longevity. Successful repairs using a soldering iron or a heat gun indicate the potential of these methods in extending the lifespan of flexible 3D‐printed actuators. The research highlights the 3D‐printed soft robotic system as a repairable and space‐saving alternative for constructing systems in space and extraterrestrial environments.