This is a remix, which will fit two of the A4 Prusa RC3.1 faceshields from https://www.prusaprinters.org/prints/27026-prusa-rc3-a4-sheet-face-shield-remix-quad-stack along with adhesion pads onto the bed of the ender 3. Otherwise, it remains identical, so please visit the A4 remix for any extra information.
The print parameters accepted by CHEO are 0.25mm, 30% infill and 3 wall counts+top layers+bottom layers.
The author remixed this model.