Simple Face Shield by ksihota

Last crawled date: 5 years ago

I tried printing several of the different designs and found that the print times were very long (2 to 3 hours each.)
This design takes about 1 hour to print.
It could be redesigned and cut down to print faster but this would impact the overall sturdiness of the design and limit its reusabilty.
I decided to design my own just for fun. The design is a single piece unit that can use one or two standard elastic bands to add functionality.
A single band can be used across the back if the ear pieces are not tight enough and the shield slips on a smaller head.
A secondary band can be used to help hold the actual shield material a little tighter to the headband if desired.
I made the centre (forehead) and side (temple) areas a little larger so, if desired, an adhesive pad cold be applied to improve comfort, should the shield be worn for extended periods of time.
The top of the shield, above the forehead is closed to improve safety coverage.
There are 3 models included.
a portrait mode that uses shields sitting in a tall orientation (vertical) and holes punched using a "7 inch centre" North American standard 3 hole punch.
a landscape mode that uses shields sitting in a wide orientation (horizontal) with holes punched using the standard 3 hole North American punch.
a combo mode that includes pins for both previous types. Note: if you use this model you would have to double punch your shields or cut off the tabs that are not being used.
The shields used for this mask are the 8.5x11 standard mylar plastic sheets available at office stores. These are quite flexible but fit slightly better if an elastic is used across the front as in the photo. If they are pre-punched I would expect that they would fit the landscape model. Check measurements before relying on anything.
The single piece headband takes about 1hr 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)
the print requires no support or build plate adhesion, however I do use a skirt for my prints to prime my nozzle.
Note: Use at your own risk. 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 for intended use.
If you do try and like the design but find the size is not right let me know and I can resize it if necessary.