Curved Layer Fused Filament Fabrication Using Automated Toolpath Generation

Abstract An automated method for the generation of curved layer toolpaths is demonstrated to produce 3D printed components with improved aesthetic and structural properties using fused filament fabrication printing. Three case studies are shown, which demonstrate the ability of the G-code generating algorithm to resolve concave and convex structures. The combination of conventionally printed layers and curved layers within a single print is also demonstrated by producing double skin curved layer sandwich structures with static z printed cores. Clear improvements in the surface finish of printed components using curved layer fused filament fabrication are shown visually.

[1]  M. Buehler,et al.  Tough Composites Inspired by Mineralized Natural Materials: Computation, 3D printing, and Testing , 2013 .

[2]  Gideon Levy,et al.  RAPID MANUFACTURING AND RAPID TOOLING WITH LAYER MANUFACTURING (LM) TECHNOLOGIES, STATE OF THE ART AND FUTURE PERSPECTIVES , 2003 .

[3]  Ian Gibson,et al.  Curved layer fused deposition modeling , 2008 .

[4]  Rhys Jones,et al.  RepRap – the replicating rapid prototyper , 2011, Robotica.

[5]  Anthony Atala,et al.  3D bioprinting of tissues and organs , 2014, Nature Biotechnology.

[6]  Liang Hao,et al.  Preparation, characterisation and processing of carbon fibre/polyamide-12 composites for selective laser sintering , 2011 .

[7]  A. Roy Choudhury,et al.  Extruder path generation for Curved Layer Fused Deposition Modeling , 2008, Comput. Aided Des..

[8]  A. Todoroki,et al.  Three-dimensional printing of continuous-fiber composites by in-nozzle impregnation , 2016, Scientific Reports.

[9]  Qian Sun,et al.  Modeling of Bond Formation Between Polymer Filaments in the Fused Deposition Modeling Process , 2004 .

[10]  Yuan Wang,et al.  Glass bead filled Polyetherketone (PEK) composite by High Temperature Laser Sintering (HT-LS) , 2015 .

[11]  David A. Hutchins,et al.  A Simple, Low-Cost Conductive Composite Material for 3D Printing of Electronic Sensors , 2012, PloS one.

[12]  R S Trask,et al.  Self-healing polymer composites: mimicking nature to enhance performance , 2007, Bioinspiration & biomimetics.

[13]  R. Clavel,et al.  A Fast Robot with Parallel Geometry , 1988 .

[14]  Richard S. Trask,et al.  An experimental demonstration of effective Curved Layer Fused Filament Fabrication utilising a parallel deposition robot , 2015 .

[15]  Selçuk Güçeri,et al.  Mechanical characterization of parts fabricated using fused deposition modeling , 2003 .

[16]  S. Singamneni,et al.  Alternate slicing and deposition strategies for fused deposition modelling of light curved parts , 2012 .