i really can not get in may head how to do it ive seen people uuciong projecyion curves to create complex surfaces but i just dont understand how do you do it with a helmet ive got 2 images one for the profile and the other one for the front
As a starting point, check out this helmet I made a while back. It is based on 2D sketches as well.
I think the biggest use of projected curves was for the twisted horns, As I recall, the remainder of the helmet was mostly created with surface lofts or sweeps.
Skyrim Helmet (Yngol)
Roger did such a great job, I figured I'd try my hand at the model as well.
The SolidWorks model is saved in 2016