Pandoraa Tech on Instagram: "In 1939, inventor William E. Urschel built what’s considered the world’s first 3D-printed structure—right behind a small warehouse in Valparaiso, Indiana. A year later, he filed patents for a “Wall Building Machine,” decades before modern 3D printing became reality. The future was being built long before we noticed. Credits: © Time Capsule Tales (X) Hashtags: #TechnologyHistory #3DPrinting #Robotics #Engineering #Innovation #FutureTech #Inventors #Architecture #Const