Well my mistake can be someone else's gain. I printed my helmet at the wrong scale so I'm looking to sell it. I also printed the visor buck before realizing what I did so I'll include that as well. The helmet is printed using the GA files in 2 pieces in PLA and the visor buck is printed in PETG. It's printed at 103%, the bottom opening is 9" x 7.25". The front is in 2 colors because I ran out of blue just before it finished but it is one piece.
$65 shipped to you
$65 shipped to you