Who knows that the production of automatic turntable involves the understanding and research of motor gear governor?
I don't know if you want to do just one or more. If you only make one, the cost is higher. The structure is not complicated. I suggest you use the motor to reverse the direction, and choose the speed regulating motor to accelerate and decelerate. A pair of bevel gears can be considered in the reduction box, but a pair of gears can be added if the reduction ratio is not enough.