Mold Printer: Creating Living Self-Revealing Artworks

We present a method of creating living computer-aided drawings by depositing mold spores onto a growth medium using a modified 3D printer. Our approach combines the precision of computerized numerical control with the organic growth of fungi to yield an aesthetic and evolving viewing experience. The organic element of the drawing results in unique and unexpected artifacts driven by environmental factors and manufacturing inconsistencies. The microscopic spores, invisible to the naked eye, also allow for a sense of anticipation and surprise as a drawing slowly develops. Exploring the possibilities of mold-based media, we examined the color, growth pattern, and species interaction of two non-toxic fungal species. In this paper, we address the technical challenges of building a reliable mold printer, explore different methods of preservation, and conclude with a discussion regarding the artistic possibilities of creating living mold drawings.