Help with Gear Ratio Calculations

Originally Posted by kklokreach

Thanks this helps a lot, i finally got the numbers to come out right. Though now I have another question, how does the number of motors affect the speed and torque of the drivetrain? Of course this means more torque and speed due to an extra motor, but how does this translate to the fps and torque mathematically?
-Nick

You can add as many motors as you want* and your final speed isn't going to change. Motors increase torque, but not output velocity (if you have one motor at a thousand rpm, and you add another motor at a thousand rpm, the first motor isn't suddenly going two thousand rpm). Torque is calculated linearly. Double the amount of motors, double the amount of torque.

*This is assuming all motors have the same or similar output speeds. Of course adding a motor that's twice as fast as the original motor is going to speed things up a bit, but that's a situation you should rarely come across in FRC. CIMs and Mini CIMs, for example, are about the same speed.