The Shield, Mk IX - First responder shield

For a couple weeks, our makerspace has been printing PPE for local doctors and front line workers. We quickly fell in love with Joel Telling's "Manta Ray" face shield, as it combined the best of two NIH-approved models, the Prusa Shield, and The 3D Verkstan shield. With nearly 1,000 pieces of PPE printed, the most significant feedback we received from those who had used both of the other shields was that the Manta Ray put the shield material too close to the user's face, making it more prone to fogging from breath. After a number of revisions, this shield visor is the end result, and we feel it brings together the best of all current NIH-approved shield designs. It has the curved front and distance from the face that makes the Prusa shield superior. It also features a headband that holds to the head on its own and doesn't require a band for most users.

There are nine files included - Cap file, for making a cap that pressure fits on top of the frame. Visor files, in two classes. Each class has a model with 1, 2, 8, and 12 visors. The two classes are identified by the end of their file, and are as follows:

CREALITY: These are better for most Creality machines and others where 0.28 layer heights are optimal for the machine.

GENERIC: These are designed with 0.3 layer heights, and will print on a vast majority of printers with a 0.0025 "magic number"

And while the shield wasn't specifically designed with the #FaceCoveringChallenge in mind, why not have fun? :)