yasith-nimsara
nice
This is a real size safety helmet which is suitable for most High Density PE helmet inners as they are flexible. Attached real life image of safety helmet is dirty because it has seen real underground coal mine - However, do not use a printed helmet from a 3D printer as a safety helmet becuase a printed material is not strong enough if it is compared to plastic injection molding.
To print this model, user should have a large size printer bed.
3D printer settings are shown in screenshots.