I am a designer and educator. My work focuses on the translation of historic modes of drawing into software, animations, objects and pen plotted drawings. I published a book on the drawing techniques of the 17th century Italian architect, Guarino Guarini. This site contains a selection of drawings produced with an interactive software that I designed and built. The software is a study of round objects defined by the approximations of cones, spheres and tori rendered with a custom rendering algorithm. It is built entirely with open source libraries and no commercial software has been used in the production of any of the media presented on this site. The drawings are plotted on a Bantam Tools plotter with isograph technical pens and sometimes mechanical pencils. Each drawing takes between 15 and 20 hours to plot and requires pen changes and ink refills. At present I am located near the White Mountains of New Hampshire, and I am probably working on a new drawing.