So I’m in the beginning of designing my robot for our next competition. I need some help on our drive side. I have dedicated 4 motors to the drive but not to sure if they would be to weak. I was going to directly put the axles and the wheels. Would it better to put gears or chains or would it just create to much friction?
I would do with 4 motors high speed direct drive?
The biggest benefit of chaining or gearing two or more wheels or motors together on one side of your robot is that if you tip forward or backward and only one wheel is in contact with the ground, it will get the full power of all the motors, rather than wasting that power spinning a wheel in the air.
@Robo_Eng_13 well what about friction of the chains or gears
It shouldn’t be that much
Ok thanks, what would be the ideal gear ration or chain sprocket size
I would use any size sprockets (preferably small to conserve space), but just make sure they are 1:1 IMO
Ok thanks
It really depends on your design, but you could probably turbo the drive motors.
I would try and stay away from the tiniest sprockets as the larger ones give a smoother bit of travel.
I think those ones are fine, I believe the ones @Team80_Giraffes is referring to are the 6 tooth sprockets.
I would direct drive it. If you are running 3.25 inch wheels you can sustain turbo and if you are running 4 inch wheels you can run speed. I do not recommend chaining from a motor to the wheel, it just takes up excess space. If you want good accuracy for programing and autonomous direct drive the wheels and then chain the two wheels together with a quadrature encoder connected to chain. This all assumes you have good build quality…