  We show how to convert models of complex systems such as 2D cellular automata
into a 3D printed object. Our method takes into account the limitations
inherent to 3D printing processes and materials. Our approach automates the
greater part of this task, bypassing the use of CAD software and the need for
manual design. As a proof of concept, a physical object representing a modified
forest fire model was successfully printed. Automated conversion methods
similar to the ones developed here can be used to create objects for research,
for demonstration and teaching, for outreach, or simply for aesthetic pleasure.
As our outputs can be touched, they may be particularly useful for those with
visual disabilities.
