Summary

I modified the shield model a bit.

1. No need to make holes in the plastic, just insert the plate into the slot.
2. I used the teeth to better hold the plastic in the slit of the shield.
3. The depth of the visor is enough for those who wear glasses.
4. I made 2 options - rounded and more square in shape.
5. I tried to minimize the model for faster printing. My printer printed in 1 hour 40 minutes.

PS I changed the height of the model, picture 2_4. STL is new.