Migrating from thingiverse
https://www.thingiverse.com/thing:4281750
The Face Mask Template Pattern are directly from
https://www.craftpassion.com/face-mask-sewing-pattern/
i did not design the pattern, i merely converted the pdf pattern (Pocket version only) to be printable using a 3d printer.
All credit should go to them.
instruction are also on their website
the template are 0.5mm thick
if printed with 0.15 layer height you will get 3 layers with cura
if you want it thicker without having to go through the design files, you can always scale the Z axis in your slicer.
i did however design the Adjustable Strap Elastic band Adjuster - 12mm
https://www.thingiverse.com/thing:4281713
included here as well
I used 4cm of elastic band to attached the adjuster to the mask. jagged edge pointing towards mask
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Update 15/04/2020
Added a curved version of the Nose Wire Template (Small/Young/Adult).
FreeCad 0.18 design file included
The author remixed this model.