I 3D printed 80 percent of my armor using Sean’s files and Nico’s helmet files. No fiberglass used on any of the parts. 3D printed on a Formbot T-Rex 3.0 large format printer. I used Simplify 3D software and 20 percent infill with all walls upper, lower and sides at 4. My armor and all parts are heavier but sturdy in PLA. I was skeptical about 3D printing armor but was proven wrong. I love what I am able to do with my 3D Printer.