Simple Face Shield

thingiverse

I tried printing several of the different designs and found that the print times were extremely long, ranging from 2 to 3 hours each. This particular design takes about 1 hour to print, which is a significant improvement over the others. However, redesigning it to make it even faster would compromise its overall sturdiness and limit its reusability. I decided to create my own design just for fun, and it's a single piece unit that can be used with one or two standard elastic bands to add functionality. A single band can be stretched across the back if the ear pieces are not tight enough and the shield slips on a smaller head. Alternatively, a secondary band can be added to help hold the actual shield material a little tighter to the headband if desired. I made the centre (forehead) and side (temple) areas slightly larger so that an adhesive pad could be applied to improve comfort if the shield is worn for extended periods of time. The top of the shield, above the forehead, is closed to provide improved safety coverage. There are three models included in this design: a portrait mode that uses shields sitting in a tall orientation (vertical) and holes punched using a standard 3-hole punch; a landscape mode that uses shields sitting in a wide orientation (horizontal) with holes punched using the same 3-hole punch; and a combo mode that includes pins for both previous types. Note that if you use this model, you would need to double-punch your shields or cut off the tabs that are not being used. The shields used for this mask are standard mylar plastic sheets available at office stores, measuring 8.5x11 inches. These sheets are quite flexible but fit slightly better if an elastic is used across the front as shown in the photo. If they are pre-punched, I would expect that they would fit the landscape model. Before relying on anything, please check measurements to ensure a proper fit. The single piece headband takes about 1 hour to print at 0.3 layer height using a 0.4 nozzle, 0.5 layer width, with 10% infill and at 90mm/s (45 outer wall, 90 inner wall). This print requires no support or build plate adhesion, but I do use a skirt for my prints to prime my nozzle. Note: Use at your own risk and check all measurements and fit before relying on any 3D printed model. These models have not been tested in medical situations. Ensure that you check the intended use carefully. If you try this design and find it doesn't fit right, let me know and I can resize it if necessary.