By their principal capacity of reproducing any given geometric complexity they leave all the classical approaches far behind digital manufacturing of goods by means of 3D printing is very fast, cost-effective, and waste-free. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.Īdditive manufacturing technologies continue to develop extremely rapidly. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper and its Supporting Information files.įunding: The study was supported by Russian Science Foundation ( grant No.

Received: JanuAccepted: Published: June 7, 2018Ĭopyright: © 2018 Gordeev et al. McAlpine, University of Minnesota Twin Cities, UNITED STATES It was demonstrated that high quality of 3D printed objects can be achieved using routinely available printers and standard filaments.Ĭitation: Gordeev EG, Galushko AS, Ananikov VP (2018) Improvement of quality of 3D printed objects by elimination of microscopic structural defects in fused deposition modeling. Optimization of these parameters led to an overall increase in quality and improvement of sealing properties.

Filament feed rate, wall geometry and G-code-defined wall structure were found as primary parameters that influence the quality of 3D-printed products. Using this approach it was shown that the wall permeability of a printed object depends on its geometric shape and is gradually reduced in a following series: cylinder > cube > pyramid > sphere > cone. This article describes a simple and efficient approach for assessing the quality of 3D printed objects. The major disadvantage of FDM-created products is their low quality and structural defects (porosity), which impose an obstacle to utilizing them in functional prototyping and direct digital manufacturing of objects intended to contact with gases and liquids. Additive manufacturing with fused deposition modeling (FDM) is currently optimized for a wide range of research and commercial applications.

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