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Hacksburg is standing by to produce face shields if requested by local officials or medical facilities.
== Current Actions ==* Coordinating with [https://www.facebook.com/groups/881410205614868/ 3D Printed PPE Roanoke VA]** Supplying 1500 DtM face shields to Carilion Hospital for delivery to Carilion medical facilities** Supplying previously produced Prusa/Budmen/Verkstan designs to first responders (designs not approved by Carilion)** '''If you have a 3D Printer and are interested in assisting, join this group!'''* Coordinating with Virginia Tech group** Trying to get a UW style shield approved by Lewis Gale** Hacksburg standing by to provide access to manufacturing equipment while VT is closed == Current Design ==* US Version Prusa RC3 Headband: https://3dprint.nih.gov/discover/3dpx-013409** Faster printing than design with brim** Pegs spaced to use clear shield with 3-hole punch* Laser cut Verkstan-style headband** Remixed from https://3dprint.nih.gov/discover/3dpx-013306 ** 2.5 minutes per headband** Grips head, does not require elastic* Custom designed laser cut clear shield** 5-hole design compatible with Euro and US hole-punch spacing** Optional integrated brim to provide overhead protection == Alternate Designs ==* Open source face shield from University of Wisconsin: https://making.engr.wisc.edu/shield/** Drawing: https://www.delve.com/assets/documents/Open-Source-Face-Shield-Drawing.pdf
* Cheap and fast to produce - no 3D printing required
* Other options we thought about:
** https://3dprint.nih.gov/discover/3dpx-013238?fbclid=IwAR13_cB6DR475PvbUBBAAXCPud9X3EwqKkwqGkocr1iaeoQlIrhFKsjkupE
*** Undergone review in a clinical setting and is recommended when fabricated as instructed by the National Institutes of Health
** http://makernexuswiki.com/index.php?title=3D_printed_face_shields
*** Shields the top of the head with transparent shield material, faster to print than NIH design
** https://www.protohaven.org/proto-shield/
*** Laser cut design; only requires PETG and elastic band
** https://pwp.gatech.edu/rapid-response/face-shields/
*** Laser cut design; only requires PETG and elastic band
== Materials ==
* Clear shield
** CLEAR POLYESTER FILM - 0.007" THICK, MCMASTER-CARR PART NUMBER 8567K64 (https://www.mcmaster.com/8567k64)
** PETG from soda bottles - potentially supplied by Coca-Cola** PETG Window film - donated by Eastman Precision Films
** Projector transparencies
** https://www.piedmontplastics.com/products/petg
** https://www.usplastic.com/catalog/item.aspx?itemid=23337
* Elastic band
** ELASTIC LATEX FABRIC (1" WIDE X 13" LONG), MCMASTER-CARR PART NUMBER 88225K68 (https://www.mcmaster.com/88225k68)
** Alternative: https://www.bestmaterials.com/detail.aspx?ID=20220&gclid=EAIaIQobChMI5f6FvajA6AIVg5yzCh3VuwaAEAQYBSABEgLtqfD_BwE
*** Makes 26 foam pads per spool.
* Brow Foam
** ADHESIVE BACKED POLYURETHANE FOAM (1" TO 1 3/8” THICK), MCMASTER-CARR PART NUMBER 8614K84 (https://www.mcmaster.com/8614k84)
** Alternative: https://smile.amazon.com/Exercise-Strength-Resistance-Stretching-Workouts/dp/B07THMV2B1
*** Makes ~400 bands per 24 yard purchase.