I have a few questions about gears.
Here are some questions from the following sites.
1．Does the difference in geometry make any difference in the calculation of torque, friction, etc.?
2．Is it possible to reproduce a rack and pinion mechanism like the one in the image? I want the pinion gear to spin without any constraint from the rack when there is no gear.
3．How can I create an accurate gear using MATLAB files and Simulink blocks?
4．How can I reproduce realistic gears with gear friction, inertia, etc.?
I would appreciate an answer.