Technically, the Queen didn't do the job herself, instead pressing a green button that prompted a robot arm to cut a ribbon for the bridge's opening. While that might seem a bit odd in a vacuum, given the world-first of the bridge and the robotic wire-and-arc additive manufacturing (WAAM, because...
https://www.techspot.com/news/90460-3d-printed-bridge-red-light-district-opened-dutch.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/90460-3d-printed-bridge-red-light-district-opened-dutch.html?utm_source=dlvr.it&utm_medium=blogger