The Signal on Instagram: "At the edge of Valencia lies a little piece of history: not just a piece of the first 3D printer ever made, but the first-ever 3D printing company in the world— 3D Systems, co-founded by Charles Hull.  View more at the link in our bio or tinyurl.com/2s3bybdd Article & Photos: Habeba Mostafa #SignalSCV #SCV #SantaClarita"