There is currently a collaborative local effort to 3-D print face shields for first responders and the medical community, with help from IMS engineer Ryan Neve.
Coastal Review Online has published a story on the effort at https://www.coastalreview.org/2020/04/lab-staff-use-printers-to-equip-responders/
WNCT 9 has also produced a segment on the collaborative effort which is available at https://www.wnct.com/local-news/unc-duke-marine-lab-3-d-print-face-shields/
WRAL has also covered this story which is available at https://www.wral.com/coronavirus/duke-drone-lab-retools-for-face-shields/19051414/