tailieunhanh - LEGO MINDSTORMS - Robotics Invention System-2 Projects part 6

Tham khảo tài liệu 'lego mindstorms - robotics invention system-2 projects part 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Robot 4 MINDSTORMS F1 Racer 111 Robot 4 MINDSTORMS F1 Racer Although a car is a very common type of vehicle it is built very much unlike a common robotic vehicle. Robotic vehicles are usually built so that separate motors control the wheels on each side. This setup is advantageous because it is easy to build and navigation is easily controlled through software that has direct control over each wheel. Going forward turning and going in reverse can all be achieved by a simple combination of forward reverse commands to the motors. A car on the other hand is usually not built this way. The motors are not attached directly to the wheels rather one motor is devoted to driving the car forward. This means that the motor must be able to steer the entire car without access to the driving wheels. This MINDSTORMS model is a simplification of a common car. Like a car this model is driven by its rear wheels through the use of a differential. It is steered by a rack and pinion system also like a real car. One motor is used to drive the back wheels and one to steer the car. The chassis gives the model stability and body work is added for the final decorative touch. This car is built in stages also somewhat like a real car. You will first build the chassis then add individual components driving motor rack and pinion steering system steering motor front bumper and a spoiler to the chassis and then put the wheels on to complete the car. The RIS kit does not include many steering or driving parts available in other TECHNIC sets so you will have to be creative with the parts you do have. After you finish building your car you can make some simple programs to drive it around. For an extra challenge try to add a bumper system so that your car can react to obstacles For a more detailed model of a car check out LEGO TECHNIC Model 8448 The Super Street Sensation. 112 Robot 4 MINDSTORMS F1 Racer The Right Chassis The first part you will build is the right side of the chassis. When combined .