Hospital staff normally do not wear face shields. Due to the highly contagious nature of this virus, hospital staff are now all trying to wear these, so naturally there is a huge shortage. Disinfecting requirements also drive up the need for additional shields. Hospital staff are spending precious time away from their dying patients sterilizing PPE since they have to reuse it.
This blogpost is highlighting a Swedish design that is approved for usage in many hospitals. It's simple, no moving parts, and fast & easy to print. Link to STL files: https://3dverkstan.se/protective-visor/protective-visor-versions/
I am printing the North American version that has 6 pegs to attach the shield.
I am directing my efforts to my local community. There is a Facebook group setup to collect these face shields and distribute to the local hospitals (Enumclaw plateau area, St Elizabeth Hospital)
Facebook Group
See here for more info on the Swedish design. protective-visor-by-3dverkstan
Shield Material: We are using clear report covers for the shield material. Available on Amazon Here
The holes on the shield are basically 2 sets of standard 3-ring binder hole punches spaced 1 inch apart. Place shield in a 3-ring hole puncher and position center hole 1/2" away from from center and punch 3 holes. Shift over 1 inch to the other side of center and punch the last 3 holes. Practice on a sheet of paper till you master it.
Printing: Use PETG or ABS. PETG is much easier to print. ABS will take some extra skills to print. Most of my material on hand was ABS so that's what I used. I finally got a good print after I turned off my cooling fans and put a dab of glue-stick on the curly-q ends. Don't use PLA. It's not robust enough to withstand usage and chemicals for sterilization.
Print it 100% with all perimeters (no in-fill). I set it to 9 perimeters and 3 top and bottom layers. Print time was about 1hr for 2 frames. 2 Shields can nest onto one print if your bed is large enough (250x200mm) and you rotate the fames about 20 deg. My printer is a Prusa MK2S. Additional info: Print Guide
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