The files labeled (1)-(4) is the model split up to print the curves better and have no supports. each of the four files need to be printed once normal and once mirrored in order to make a full prop. When assembling you will need 3 of the bowtie connectors to help with alignment and stability. the whole and half models are also provided to split up on your own or print on a larger printer.
The author hasn't provided the model origin yet.