Industrial Design manufacturing possibilities have been modified by digital fabrication. A shift from regular to more complex shapes has occurred. During the last years we have been studying cutting and unfolding techniques, in particular the correspondence between cutting patterns and the different types of flexibility provided to rigid sheets. Different types and generative strategies have been developed and tested in their application in product design and in teaching. The enhancement of programming tools will enable experimentations in the continuous transformation of material properties through morphological interventions.