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I turned calibrated it using the video but it still has a buzz. I When i turn the potentiometer low enough to have no noise, there isn’t enough current to drive the motor.
I assume that the ramps 1.4 and arduino setup is able to make the stepper motor completely silent when it is in holding position because that’s the way it is for the printrbot printrboard. Am I correct in assuming that?
I was also reading online and the high pitch frequency could be due to “switching frequency” being in the audible range. Is there a way to modify that frequency in the arduino software?