Green ranger helmet parts are scaled to print on a 300x300mm print area. Except for the 1 piece helmet that is sized for a 200x200mm print surface and is the original file just scaled down.
Probably not the best job of slicing it up into pieces to print, I may try another pass at it, I printed this for a friend who is into the Green Ranger and needed a helmet.
The picture of it together, all the parts are being held together with Painters Tape, so you see the cuts, the Helmet is not finished in these pictures