I don't think this is 3D Printing in the way I understand it?  Puzzled? 

3D Printing
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@Qitian_Dasheng_Sun_W lol assembling pre cut pieces isn’t printing. Its called manufacturing assembly.
Otherwise a car is printed or a telephone.
Assembly of printed parts is an assembly of printed parts.

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A video of Mcor’s machine which has some good closeups of the internals: