How helicopter rotor head is made easier and faster

How to build a helicopter cyclic swash plate

My homemade tracked car with the axle

Homemade tracked car

https://www.google.com/url?q=https://m.youtube.com/watch%3Fv%3Do2Ku5kpykdk&sa=U&ved=2ahUKEwill7zpwKjlAhXyQkEAHbSDAtsQtwIwB3oECAkQAQ&usg=AOvVaw25nzx6LmaTdjmKOrRUSslc

HELICOPTER

1. Helicopter
2. This is a flying machine with antitoque and main rotor. It's ability to fly depends on the power of its engine, the angle of attack and inclination when it's rotor turns with the blades. 

Helicopter is a complex machine built-up by several mechanism for its control. http://www.bing.com/search?q=youtube&PC=IS25http://www.bing.com/search?q=google&PC=IS25