This is an other version of the RC3. The forehead part is thinner and more flexible. This help the face shield to fit much more comfortably on every shape of skull.
This is important when you have to wear it all day long.
I'm not an virtuoso of gcode, It works but if you think you can do better, download the stl and do your own gcode.
I'm sure you will do better than me.
If you are proud of you, please upload it in user print file.
thanks and take care.
The author remixed this model.