As the 3D printed face shield frames are taking hours per unit, I've tried to design a face shield that can be produced from a variety of materials/thicknesses and on a range of tools.
Our intent is to try to manufacture these in high volume with die-cutting, but they are compact enough to be made in most laser cutters, and with vinyl cutters and drawknives in thinner materials.
Jackson Masters: Designer
Diego Solank: Design & Manufacturing Advisor
Jason Trachewsky: Shield Against the Business People
Malachy Moynihan: Design & Manufacturing Advisor
Sheung Li: Medical Standards Compliance Advisor
My stepmother is a Kaiser ICU nurse manager. She told me that the hospital staff was not only critically short of personal protective equipment but that people had started to fight over what little they had been issued.
The main diagnostic tool for Covid 19 is imaging, but the imaging staff aren't given priority access to PPE, so when the ICU staff has to wheel a suspected positive patient into the imaging suite, the imaging staff leave and attempt to walk the ICU staff through how to use the equipment over the phone. I can't walk my dad through trying to reprogram the microwave over the phone without things getting tense. This seemed intolerable.
After looking at all the attempts to make DIY PPE, I started to feel that everything I was seeing was condemned to remain in low volume production. 3D printing is very hard to scale, and two hour print times per disposable face shield takes far too long.
We already can't equip all the staff in hospitals, but it's critical that expand our scope to protect all the critical infrastructure workers who literally keep the lights on while we shelter in place.
This was designed to be a minimum viable face shield. It's strong enough to be reusable, and we are going to mold closed-cell foam pads that are IPA safe to make it sanitizable.
Our design is open source and has been published to DIY PPE repos: