The protective visor

After two publications I also wanted to make version 4.1 public.
In this version the advantages are:
a) the 3d printing speed (about 60 min with max speed 180mm / sec.
b) simplicity of anchoring the elastic (gummiband).
c) easy anchoring of the A4 transparent screen.
The elastic must be max 7mm wide. just insert it in the appropriate slot and make a knot.
I hope it will be of your use.
good job
by frank