+1 on that.
Maybe my comments have been misconstrued. I wouldn't use the 3d printed helmet as a part of my armour, I never said I would. As far as I'm concerned I'm printing it as I bit of fun and for comparison.
No doubt there may be a point in time where a 3d printed armour will be of an accepted quality.
Please be assured that any armour or helmet I make will be scratch built and, obviously, I will document this.