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I just bought a bondtech pancake stepper it's a+a-b+b- I did that and all it does is spudder its on a duet mastero board I tried switching the wires and nothing seems to work anyone know what I'm doing wrong
When in doubt, find the pairs through measurement
https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_Identifying_the_stepper_motor_phases