Improvised Laminate Hole Punch Guide For Prusa Face Shield RC3 (A4 Sheet)

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You are recommended to stick with the Prusa face shield's recommendation, which uses PETG sheets cut via laser cutter. Designed specifically for the popular and reliable Prusa Face Shield RC3 design, available at https://www.prusaprinters.org/prints/25857. However, in a pinch or when testing, if you have a laminator and a simple hole punch, this guide will help you create an emergency version. I've tested that it can be constructed by hand and mounted on the Prusa's Face Shield RC3 design, but I make no guarantee that laminated sheets are suitable for the job. This is only recommended when you're out of options and don't have PETG sheets or a laser cutter shop to do the job, and desperately need to produce enough. If anyone has tested this emergency version in the field and it's good enough, let me know and I'll add your assurance here. To use it, simply print the PDF sheet at 100% scale. Then cut out each strip and place it into the top of each laminator pouch. Next, place the sheet into the laminator. Next, punch out each black hole carefully and test that it mounts to the top piece of the faceshield. It should work for the top piece. You can also use the grey holes for the bottom piece, but I haven't tested if they work. Good luck, and let me know if this works for you or needs any adjustments. This emergency version was created as part of Melbourne Prusa's COVID effort at https://www.prusaprinters.org/group/covid-face-shields-melbourne-1Q7NDZ0. From online research, the reason to use laser-cut polycarbs is that they can be reused after sterilization. According to an article, "Most of the community are getting A4 laminate paper from supermarkets, while some are using laser-cut polycarbonate board which can be sterilized and reused," said a source at https://www.thestar.com.my/tech/tech-news/2020/03/23/malaysian-3d-printers-produce-face-shields-to-aid-frontliners-in-the-fight-against-covid-19. Also, 500-micron PETG sheets are preferred over 80-micron laminate sheets due to structural stability, according to Paul Bennetto in the Prusa Face Shield Melbourne group. This can be mitigated by the bottom clip. I also found another design using a laminator that's quite interesting at https://www.instructables.com/id/Face-Shield-Against-COVID-With-Laminator-or-Hair-S/. This one uses no 3D printer but just a laminator to make the shield. I've also made a version for ISO 838 available at https://www.thingiverse.com/thing:4288539.