This is mask is from the Thor Ragnarok movie. Its one of the Sakaar Junker's mask seen in the trailer/movie. I did not have a ton of reference pictures to use to design this but I had the help of Sivl32 from Thingiverse to figure stuff out, Thanks.
The helmet is sized to fit an adult male but check the PDF file for measurements. Units are in millimeters.
I design props and costumes mostly. I am not an engineer nor a trained artist. I learned almost everything from watching Youtube videos and just messing around in designing software. I started designing with Fusion 360 in August 2016.