About 25 years ago, Ford took a few of us into its research center and showed us stereolithography. It was a very expensive and sophisticated process that used laser light to very precisely prescribe a shape in a pool of resin.
How Automakers Are 3D-Printing Parts for Production Cars (and Classics) in Millington, TN

Homer Skelton Ford of Millington's Blog | How Automakers Are 3D-Printing Parts for Production Cars (and Classics)
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