German automobile giant Audi has 3D-printed an iconic grand-prix car from the archives. The 1:2-scale model of the the Auto Union Type C is a one-off iteration of a car that knocked Mercedes-Benz off the winner’s podium in the late ’30s and has been crafted using the firm’s Audi Toolmaking 3-D Printing system. The process, that Audi calls “sand-printing,” is capable of producing parts as large as 8 inches squared and stronger than those made by die casting or hot forming.
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