Hardware Development and Prototype

After we purchased the unipolar stepper motor, the school provide us again one bipolar stepper motor. As a result we decided to compare the performance between the unipolar stepper motor and bipolar stepper motor.

Construction of the racing cars body is by using aluminum and plastics. There are only three tyres to each of the design. One tyre is controlled by the stepper motor and the others for balancing the car. Racing car using the unipolar stepper motor constructed using plastics. The basement of the car was obtained from ordinary toy car. We implemented the readymade basement to our design by doing some modification. Circuitry of the design was placed on top the basement. The dimension of the car is 25cm in length and 10cm in width. Height of the car model is 6cm, without the circuit install in the car design.

Body of the bipolar racing car was build by using aluminium. It is constructed by hand. Same concept as the unipolar motor, there are only three tyres in the design and the circuit was placed on top of the basement. The car model gain power from battery source. The length of the model is 20cm and width is 10cm. Height of the car model is 18cm.

Structure of car control using unipolar stepper motor

Structure of a car control using bipolar stepper motor

The casing of remote control consists 3 push buttons (forward, backward and reset), one potential meter (adjust speed) and one toggol switch (on and off).

Casing of remote control