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Volume 2017 (2017), Article ID 1218541, 8 pages
Research Article

Error Aggregation in the Reengineering Process from 3D Scanning to Printing

Old Dominion University, Norfolk, VA 23529, USA

Correspondence should be addressed to Jennifer G. Michaeli; ude.udo@eahcimgj

Received 25 August 2017; Accepted 3 October 2017; Published 7 November 2017

Academic Editor: Dharmendra Chalasani

Copyright © 2017 Jennifer G. Michaeli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This work aims to study the aggregation of dimensional errors in the reengineering processes using 3D scanning and printing without initial design drawings. A 57-tooth spur gear is used as an example to facilitate the discussion. Two approaches are investigated. The first one builds the gear model based upon measurement taken from a caliper, and the second approach uses a 3D scanner to collect geometry data. Dimensional errors in each stage of these two approaches are investigated. Particular attention is paid to the geometry data flow in the reengineering process from data acquisition and editing to model construction. Recommendations are made in regard to error estimation and alleviation.