3D Printing Solid Mobius Strips

Travis Wert

University of Notre Dame

Danielle Brake

University of Wisconsin - Eau Claire


Abstract

Mobius strips are parameterized explicitly by two variables, and have no thickness.  However, surfaces with no thickness cannot be 3D-printed without additional post-processing to the discretization.  Hence, we want equations for a naturally printable algebraic approximation of a Mobius strip that has thickness, referred to throughout as a solid Mobius surface.  In this paper, we (re-)derive these algebraic equations, demonstrate Matlab code generating solid Mobius surfaces with an arbitrary number of twists, and use Numerical Algebraic Geometry to compute a smoothed numerical cellular decomposition of the objects.  We conclude with 3D-printed results.