Hacksburg is standing by to produce face shields if requested by local officials or medical facilities.
Contents
Current Actions
- Coordinating with 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/
- 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
- https://3dprint.nih.gov/discover/3dpx-013238?fbclid=IwAR13_cB6DR475PvbUBBAAXCPud9X3EwqKkwqGkocr1iaeoQlIrhFKsjkupE
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.