After carefully disassembling and studying the steering system we began building the steering system ourselves. The difficulties here are as follows.
First, what we have to solve is how to make the two wheels rotate synchronously. Our plan is to use both ends of a horizontal column to make concave grooves with protrusions at the upper and lower ends corresponding to the tire connection ports. This serves as the main axis that connects the two ends for synchronous rotation. At the same time, we use two plywood to clamp the stopper on the tire from top to bottom. In this way, the tire can only rotate in the left and right directions, and it is not easy to fall off.
The second trouble we have to solve is how to make the two wheels rotate at the same angle. Rather than using multiple servo motors to control them separately, we prefer to use one motor to control both wheels at the same time, which helps avoid the problem of delayed synchronization. Our solution is inspired by the dismantled reference model car. We use a joystick of the same length to connect the two wheels, and then the motor translates left and right to control the wheels to rotate synchronously. This completes the design of a simple steering system. .
