The Mechatronic Circus is an annual event presenting smart devices made by Aalto University's students at the mechatronics courses. The student works are online at 9-11. The afternoon is dedicated to presentations and demos from our research groups presenting e.g. the latest research on digital twins, machine vision and rotating machines. Come and hear the latest research on digital twins, machine vision, rotors and more on 8 April at the Mechatronic Circus & Demo Day.