1, first connect one end of the battery with a wire, then take out the yellow corrugated paper, stick it with double-sided tape, stick one end of the wire on the copper cap, and enclose the battery with gold corrugated paper.
2. Cut out a circle with cardboard, then stick this circle on the back of the motor, then take out a wire, cut a small hole at the center of the circle, then put the wire in, stick double-sided tape under the circle, then stick the other end of the first wire on one end of the motor, and the other end of the second wire on the other end of the motor, so that the motor and the battery can be connected.
3. Take out the gear with a correction tape, cut the corrugated paper into three sections and stick it on the gear, then drill a pen cover in the center of the gear, put double-sided tape in the center of the pen cover, and then stick the gear on the motor.