Yes this time damage is possible

The sword is made from an old car spring, so the steel is quite hard (and sharp), the motors rotate at 140 rpm at 12v I'm running them at 14.4v if the robot is going fast forward, and is slammed into reverse the swing time for the sword is about 0.1 seconds or 100 milliseconds! :shock:
When testing the robot outside on the grass the sword travels so far into the ground it pins it to the spot.
I'm lookin forward to next week :shock: