This essay, published in Computational Design, DOSYA Issue 29, explores the implications resultant from a consideration of computing and drawing together. Conceptual arguments are presented alongside a computing drawing project, which entails the activation of a vintage pen-plotter. In this project, the pen plotter is controlled directly with the Python programming language. With and around these drawings, a critique is offered of the prevalence of the digital model and the fixation on “tool-making” in computational design discourse.