Hammering as a traditional craft needs persistence. Individual beatings are caused by compressed air with a nail gun. This allowes an intuitive, painterly handling of the sheet. The user can work with stencils and stops on the provided workbench to get graphic, playful grooves and bends. The result is a process for creative interaction with material and tools. A process performance between user and machine. The Project was a collaboration with Lenn Gerlach.