Rolling robots that can tumble over obstacles and tackle slopes. They move by constantly rotating a counterweight, shifting the centre of gravity forward, causing them to roll. Teams build a small prototype so that they understand the principles. They can then modify their DrumBot by making it bigger, changing the speed of the motor and adjusting the size and position of the counterweight.
Group sizes: 20 to 100 depending on workshop format
Recommended age: Year 6 to adult
Workshop duration: 1 hour to whole day