heitsontron
looks good
Predator 1 Biomask
Designed in Blender specifically for 3D printing. It may or may not need to be scaled depending on the wearer. The side sensor is separate to the main mask for easier printing.
NOTE: this file is very high resolution so slicing may be quite slow on some computers
EDIT: I have also included a decimated STL version for people whos computer software cant handle the high resolution files
Revision: Due to feedback ive also included 3 sliced variations: 2 piece, 3 piece and 6 piece for different sized printers