Be sure to check out CollinMcCaf's Model Repository! Spent a considerable amount of time searching for a quality 3d printable EVA helmet so I decided to make my own. Heres the process I went through and the finished result This has been printed by at least two people, myself included. Be sure to appropriately scale before printing. 9 files (including the main file). EVA_Helmet.zip EVA_VisorOnly.zip Recommendations: Use at least 15% infill; I did 20% with a .4mm tip, .2mm layer height Use your completed print to make a slosh mold, your helmet will be much stronger **Untested visor creation method** For something with a visor this large, I'm going to make a plaster mold which when heated, I'll be able to press my warm plexiglas into (should make for some crisp lines) -- Fun fact-- This model has 63,704 polygons!