Judge Gabranth from final fantasy 12.i printed this helmet on my anycubic kobra 2 plus, it is a large scale printer but not too uncommon today.i printed it in pieces as all the pieces float above one another.i used prusa slicer Tree support to print each model, the stl are placed in the exact position i printed my own and found this orientation works best.i added registration holes and spacers to connect the pieces.
the helmet fits my head quite comfortably, i have a big head. i suggest printing just the faceplate_01 and faceplate_02 before printing the other pieces as these pieces fit on the head.
for connecting the pieces i simply used hot glue as it is fast, but you can use various glues, i put glue through the registration holes to connect the pieces.
i have included a step by step assembly of the pieces.just print all the stl files
ps-i have yet to finish painting my print, but i have test fitted it to check it all works.