This is incredible! I genuinely hope its not fake but I cant see how scanning could enable the parts to be separate enough to move.
it is real, I've seen it before, you can even print plastic bearings !
even better... there's mahcines to print in metal now.... it's not proper solid solid... a bit of a honeycomb to it... it's about 60% metal 40% air
but then once it's done you can dip it in molten brass (or others iirc) when you pull it out and it cools the brass has filled in all the air gaps and it's nice and solid :-0)