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IJAT Vol.11 No.1 pp. 29-37
doi: 10.20965/ijat.2017.p0029
(2017)

Paper:

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Evaluation of Additive Manufacturing Processes in Fabrication of Personalized Robot

Shushu Wang†, Rakshith Badarinath, El-Amine Lehtihet, and Vittaldas Prabhu

The Harold and Inge Marcus Department of Industrial and Manufacturing Engineering,
The Pennsylvania State University
University Park, PA 16802, USA

†Corresponding author

Received:
May 17, 2016
Accepted:
December 1, 2016
Published:
January 5, 2017
Keywords:
personalization, 3D printing, fused deposition modelling, material jetting, robot, dimensional and locational accuracy, tensile strength
Abstract

Customer participation in the design stage of creating personalized products is increasing. Additive manufacturing (AM) has become a popular enabler of personalization. In this study, we evaluate the fabrication of an open-source robot arm in terms of cost, build time, dimensional and locational accuracy, end-effector accuracy, and mechanical properties. The mechanical components of the table-top robot were fabricated using two different AM processes of fused deposition modeling (FDM) and material jetting (polymer jetting or PolyJet). A reduction of infill density by 50% in the FDM process slightly decreased the building time, material cost, and tensile strength, but induced a 95% reduction in yield strength. A simulation of the mechanical assembly using the CAD models for the robot and the expected tolerances of the components estimated the end-effector positioning accuracy as 0.01–0.22 mm. The 3D printed robot arm was redesigned and fabricated using the best evaluated process in this study.

Cite this article as:
S. Wang, R. Badarinath, E. Lehtihet, and V. Prabhu, “Evaluation of Additive Manufacturing Processes in Fabrication of Personalized Robot,” Int. J. Automation Technol., Vol.11, No.1, pp. 29-37, 2017.
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