New Filament Deposition Technique for High Strength, Ductile 3D Printed Parts

This paper proposes a method to use an off-the-shelf commercial Fused Deposition Modeling (FDM) 3D printer with minimal modifications to manufacture higher strength parts that fail in a ductile rather than brittle manner. A novel scan pattern designed to increase interlayer adhesion in FDM parts is modeled and tested to determine its effect on mechanical properties of printed ABS parts. Results from three-point bend testing indicate a significant increase in part strength and elongation at break when using the proposed scan pattern compared to parts manufactured using a traditional scan pattern.