Due to substantial abuse of the grinders, and a general lack of literacy amongst users, the bench grinders have been pushed to training required.
It is a short, 5 minute quiz. When you walk up to the grinder it has a QR Code, and upon completion of the electronic quiz (via Google education quizzes), it will respond with that the member missed and an explanation of what was wrong. There is no limit on attempts etc since it explains the answers. Upon completion a code is displayed to unlock the power box.