Journal Pre-proof 3D Printed Optics with a Soft and Stretchable Optical Material Edidiong Nseowo Udofia, Wenchao Zhou PII: S2214-8604(19)30933-9 DOI: https://doi.org/10.1016/j.addma.2019.100912 Reference: ADDMA 100912 To appear in: Additive Manufacturing Received Date: 5 July 2019 Revised Date: 21 August 2019 Accepted Date: 8 October 2019 Please cite this article as: Nseowo Udofia E, Zhou W, 3D Printed Optics with a Soft and Stretchable Optical Material, Additive Manufacturing (2019), doi: https://doi.org/10.1016/j.addma.2019.100912 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2019 Published by Elsevier.