Automobile starter motor as servo??

All this discussion about practically any DC motor as a servo. I'm wondering how well a starter motor would work off of a car. They are about NEMA 42 sized. The voltage is low and the amperage is high. But, maybe run one off of higher than usual voltage as they were saying yesterday was ok to do. Like 40 volts and 15 amps. I think it would work. Sure cheap enough, the junkyard is full of them. very rugged too. Spare brushes would be no problem. When I pulled my servos apart to remove the electronic brakes, they looked exactly like starter motors inside

Ron



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