Project 3-Design of one-stage cylindrical gear reducer: Please follow me to complete the project 3 of one-stage cylindrical gear reducer that is based on top-down design method in the next five weeks. This project is full of challenges. The entire design process will combine the deep application of software Inventor professional, please pay 100% effort to the final project!Follow the instruction of teacher Song to finish the design of the one-stage cylindrical reducer carefully.1. Complete the reducer model based on reverse engineering and top-down design approach;2. Complete the assembly drawing of the reducer by yourself independently;3. The transmission power is 1-5KW, the interval is 0.5kw, for examples, 1KW, 1.5kw, 2kw etc.;4. The speed ratios are 1.6, 1.8, 2, 2.5, 2.8, 3.15, 3.55, 4.0, 4.5, 5..., the center distances are 63, 71, 80, 90, 100, 112, 125, 140, 160... , all important variables you determined should be various from your classmates.5. Gear module should be 2, 2.5, 2.75, 3, 3.5, 4, 4.5, or 5 ...