Path Optimization Along Lattices in Additive Manufacturing Using the Chinese Postman Problem

Dreifus, Gregory D.; Goodrick, Kyle; Giles, Scott; Patel, Milan; Foster, Reed Matthew; Williams, Cody; Lindahl, John M.; Post, Brian K.; Roschli, Alex C.; Love, Lonnie; Kunc, Vlastimil

doi:10.1089/3dp.2017.0007

Title: Path Optimization Along Lattices in Additive Manufacturing Using the Chinese Postman Problem

Journal Article · 01 June 2017 · 3D Printing and Additive Manufacturing

DOI: https://doi.org/10.1089/3dp.2017.0007 · OSTI ID:1489612

Dreifus, Gregory D. ^[1]; Goodrick, Kyle ^[1]; Giles, Scott ^[2]; Patel, Milan ^[2]; Foster, Reed Matthew ^[2]; Williams, Cody ^[2];

^[1];

^[1]; Roschli, Alex C. ^[1];

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^[1]

Oak Ridge National Lab. (ORNL), Knoxville, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States)

Here, we develop a method for programming minimal time tool paths for single-bead-wide extrusions in additive manufacturing (AM) along an arbitrary lattice. We present a graphical model of the three-dimensional (3D) printing process and use the solution to the Chinese Postman Problem (CPP) to optimize the motion of an extruder on a given mesh. We present some graph theory background and explain how to solve the CPP. We then present experimental results, in which we demonstrate the implementation of the CPP in 3D printing. Last, we explain how our graphical understanding of AM can be further utilized to achieve greater optimization in additive research.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1489612

Journal Information:: 3D Printing and Additive Manufacturing, Vol. 4, Issue 2; ISSN 2329-7662

Publisher:: Mary Ann Liebert, Inc.Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 25 works

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Additive Manufacturing of Biomechanically Tailored Meshes for Compliant Wearable and Implantable Devices Pattinson, Sebastian; Huber, Me; Kim, S. Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.39467	text	January 2019