In our Robotics minor at the Technical University of Delft, we were asked to make a robot for the automation of twistlock handling in ports. These locks are inserted in corner castings of containers to prevent them from falling off a container ship at sea. For 5 months we worked on this project in the RoboHouse in Delft. We came up with the concept to use multiple robots which could each drive to a corner casting and attach or detach a twistlock autonomously. These robots could be an addition to fully automate a container terminal.