3D model of Iron Man Mark 42 Helmet for 3D printing. Free download STL files of both front and back side of the helmet as two separate files. Iron Man Mark 42 Helmet model is by JMSProps (https://www.thingiverse.com/JMSProps) and is licensed under the Creative Commons - Attribution - Non-Commercial license: https://creativecommons.org/licenses/by-nc/4.0/