The turbulent history of Senster, a large cybernetic sculpture designed by Edward Ihnatowicz in c. 1970, is divided in two periods: the creation and prematurely cancelled display (1968–1974), and its recent reactivation (2017–2018). This article presents a comprehensive narrative of Senster’s reactivation. It explains how the conservation philosophy and methodology have been formulated and which con-cepts were instrumental in delivering the solutions. Based on these observations the authors propose a comprehensive strategy for the maintenance and reactivation of inter-active embodied systems.