Hello everybody!
I am attempting to build a 4-wheeled robot that uses only two drive motors. How can I configure/mount the two non-driving wheels so that they are free to rotate? Are there parts available in the robotshop store that could help with this? Thanks!
Can you give us an idea of the size of the robot, the motors you plan to use and the diameter of the wheels? You can use a chain / sprocket system or gears. Usually the easiest way is to use four drive motors.