COVID 19 corona virus face shield (no elastic required)

cults3d

https://youtu.be/5LWsvnXgYUc https://youtu.be/6PGoUK1Ne-E This tested, its main difference between those being printed is ITS SETTING SYSTEM (ALL IN ONE PRINT). ADJUSTMENT SYSTEM (ALL IN ONE PRINT), I have increased the margin of contact with the forehead FOR MORE COMFORT. It doesn't need support structure to hold the pins, try to find a balance between comfort and printing speed, I ask you to please suggest me remixes, changes, or whatever to improve it. THE ADJUSTMENT SYSTEM IS VERY SECURE. It consists of a tension reliever between steps of the ratchet, so as to compensate for intermediate measures. The second model, in my opinion is better in terms of hygiene, I have taken into account the NON EXPOSURE OF THE CONTAINING BASE of the acetate, so that to hold it is necessary to drill it with hot screwdriver on both sides (slot 18x2mm approx) with a separation 237mm. is a little more laborious the assembly, but perhaps worth doing so, as there are no HARD CORNERS TO CLEAN. I have used as transparent sheeting 8lts table water cans, nestle, hermida, x, two very generous surface sheets per each, and if we use the bottom edge as part of the mask we get a much more hygienic visor than the 3D printed ones.