China 3D prints a retractable bridge in just three days
China has unveiled its first 3D-printed retractable bridge. Located in Shanghai’s Wisdom Bay Innovation Park, the proverbial Mecca for 3D technology firms, the near-10-metre bridge is controlled via Bluetooth and retracts or unfurls in around a minute. The massive feat is viewed by those close to the project as a significant step in the large-scale…