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. 2016 Oct 7;6:35111. doi: 10.1038/srep35111

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(a) Photos of “single-drop” (narrowest realizable width) printed PMMA lines for different drop spacing values. The line prototypes are 5 mm long and only a subsection is shown in this photo. (b) Meaasured average height and width with error bars of the printed PMMA line prototypes in (a). (c) Average height and error bar of separately printed 7 mm × 0.6 mm lines for 1 to 15 printed layers with individual layer thickness of 4.6 μm. (d) Cross-sectional profile of the printed PMMA lines in (c) for different numbers of printed layers measured by a contact profilometer.