3D printed measuring device for the determination the surface tension of nanofluids

• 3D printed measuring device design was presented. • Du Noüy ring method was implemented in the station. • A software with graphical user interface was developed. The paper presents a method for building a low-cost tensiometer to measure the interfacial surface tension between liquid and air. The project is based on common and well-known devices (analytical balance, Arduino micro controller, DC motor) and manufacturing techniques (CAD, 3D...