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johnrobholmes · 01:19 PM

I have done some research on stepper type motors for crawling, and the main issue is the resistance of the phases (in effort to prevent ridiculous amp draw) and that the ESC would have to be matched to the motor in terms of PWM so that the coils didn't blow under load.

It would be much simpler to just throw a sensor on an outrunner to bump up the starting torque and zero rpm sync, then switch to sensorless at around 500 to 1000 rpm depending on motor. Some over current protection might be a good idea.

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johnrobholmes RC-Monster Aluminum Offline Posts: 905 Join Date: Aug 2007	06.13.2008, 01:17 PM I have done some research on stepper type motors for crawling, and the main issue is the resistance of the phases (in effort to prevent ridiculous amp draw) and that the ESC would have to be matched to the motor in terms of PWM so that the coils didn't blow under load. It would be much simpler to just throw a sensor on an outrunner to bump up the starting torque and zero rpm sync, then switch to sensorless at around 500 to 1000 rpm depending on motor. Some over current protection might be a good idea. ---JRH--- Last edited by johnrobholmes; 06.13.2008 at 01:19 PM.