How do you even print an object that large in 24hrs, nevermind actually testing/iterating on the design? It seems a little disingenuous to say those aspects were done in 24 hours unless I’m missing something.
It’s multiple parts so multiple printers, I’ve printed some plane parts from lightweight PLA and this seems pretty reasonable to me. Especially so if you imagine prior experience and multiple people. It would get tricky if you had to iterate the design though.