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This thread is privately moderated by Jack Crossfire, who may elect to delete unwanted replies.
Jun 12, 2016, 04:45 PM
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Using an encoder to step a motor

The next logical step was making a PID controller step the motor until it hit a desired hall effect sensor value. The motor position would thus be driven by hall effect sensor values rather than phase, eliminating cogging automatically.

Helas, this was way too slow to be useful in a brushless gimbal & the extra PID controller was another heap of settings to dial in. Once at the desired position, it oscillated very slightly while it hunted for the exact position. It did show promise in using the hall effect sensor to recover from pointing way off, but the tension wasn't as smooth as the stock motor.

It did result in a graph of hall effect sensor value vs phase. Useful for large scale motion, but small scale motion varies based on current.
Last edited by Jack Crossfire; Jun 12, 2016 at 08:41 PM.
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