DC motor has many coils firmly embedded in the rotor core slot, when the conductor through the current in the magnetic field by force and rotation, it will drive the entire rotor rotation. This is the basic principle of DC motor.

Installation Notes: The magnet and the rotor to maintain a distance of 4-5mm, the magnet is a N a S polarity against the rotor. Before installing the copper, you can hold the two copper contacts with the rotor wire position by hand, gently tighten to detect whether the rotor can rotate normally, and then carefully fixed, so that the copper can contact the rotor, but not too tight.

If used for demonstration, but also not fixed copper, gently touch the demo can be. Because this product is a DIY product, because each person's ability to work differently, may lead to improper installation or unsatisfactory situation, this time must be slow to learn knowledge and improve hands-on ability can be practiced out.