Lightweight A4 faceshield

thingiverse

UPDATE 22/4/2020: A new .stl file with thicker side bands and lower height has been uploaded after a user's request. UPDATE 19/4/2020: A revised .stl file with thicker side bands was uploaded following a customer's request. A lightweight faceshield or visor frame that utilizes a standard A4 transparent sheet as the visor, such as PVC report covers, acetate sheets, or PET sheets, has been designed. This design can help users reduce their exposure to splashes, aerosols, and droplets. However, please be aware that this is not a certified medical device, and use at your own risk. See the disclaimer below for more information. The faceshield was created with the intention of minimizing filament usage and print time while utilizing commonly available materials for visors instead of thick, laser-cut shields. Testing has been conducted using 0.15mm and 0.25mm thick visors. PRINT SUGGESTIONS: Print in PLA or PLA+ with a layer thickness of 0.3mm to achieve the best results. Avoid printing with brittle materials. The average print time for this design is approximately 30 minutes at 75mm/s. To reduce print time, consider using large bore nozzles (1mm), but be aware that this may cause jagging in some slicers. A 0.5mm walled version should also be strong enough for use, although jagging may occur. Ensure good adhesion by increasing the first layer temperature, reducing the first layer speed, and/or reducing the nozzle gap if necessary. However, avoid using rafts or contacting skirts as this increases print time and filament consumption. The design includes small "winglet" features to increase contact area where warping and model detachment are more likely to occur. ASSEMBLY: The visor is perforated using a standard 4-hole punch (office/stationery type) on the long side, then "clicked" into position without glue or other implements required. Slide the edges of the sheet into the side guides before clicking-in the peripheral holes. If printed correctly, the sheet should stay in position with virtually no gap between the visor and the frame. Trim the bottom angles of the visor as needed. You can also use an A3 sheet (punched on the short side) for enhanced coverage. The visor is secured behind the head using a single rubber band. NOTES: Remove any burrs or stringing carefully before wearing, as they may cause discomfort. If you plan to wear the faceshield directly on your skin without a protective cap or similar, consider applying self-adhesive foam to the forehead-facing surfaces for added comfort. DISCLAIMER: This is not a certified medical device. Use at your own risk and always consult qualified medical personnel/contamination specialists before contact with infectious or suspected infectious patients. No formal cleaning/decontamination procedures have been developed for this faceshield. This faceshield is not designed to provide any sort of impact protection and should not be used for DIY, airsoft, or similar activities. Always act safely, sensibly, and responsibly!