Material and the machines that manipulate it are vitally connected and reciprocally constrained. Each is conditioned by the other through a range of geometric, chemical, and physical parameters that the designer may choreograph and coordinate to deliberate effect. Today this dynamic interaction can be automated through robotic and CNC technology, but its full spatial and formal potential can only be interrogated through active machine invention. Just as scripting allows designers to make new tools, hardware and material hacking enables the creation of new machines and, perhaps, new modes of material operation.