Using a small robot to look at friction (traction), pulling different loads, and how the force need to pull load can be changed to improve stability.
The basic towing set up – no rubber tyres
Pulling our first load
The transmission mechanism uses a bevel gear to change the direction of rotation.
Adding tyres.
The angle of the hitches makes a big difference as well
or this happens!
Hitches angled down for improved pulling power
Coding the movement
Towing robot on rubber tyres pulling a heavy load of batteries
The Troutbeck School 