The worm-drive crawler

Engineers (Advanced), mission M10 Capstone: Rescue Rover, lesson 4 of 6.

Hook

Slow but unstoppable. Can it climb what the others can’t?

Fair test

Find the steepest ramp it can climb. Compare with the tank and truck.

Bonus challenge

Tow the tank up the ramp with the crawler.

The build

  • 🧗 Worm-Drive Crawler: Super slow, super strong: worm gears drive both axles and it never rolls back. (level 4 of 5, about 50 minutes, 20 steps)

More lessons in this mission