Over the last several weeks, Kilncore manufactured more than 350 face shields. Based on feedback from the local hospital, we also made a new variant of the original design: slightly longer on the sides, and using larger 11″ x 17″ transparency films for a much bigger shielding surface.
Since we had bought 11″ x 17″ sheets and cut them in two, as the normal 8.5″ x 11″ sheets were not available, we realized it would be interesting to use the full size. The 3 hole punch design remains the same, and instead of adding 2 holes which could be difficult to position properly, a bit of hot glue can be pushed through a small hole to fasten the sheet securely.
You can get the source files here: https://www.thingiverse.com/thing:4398716