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    1. ROBOT FORUM
    2. Questions
    3. J4 Motor trembling
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    Pierre MarcheboutDSS
    Dec 27, 2019

    J4 Motor trembling

    Hi. Initially, my j4 motor was working great. I have checked all connections, replaced the motor, and it is still trembling when I try to Joggle. Any ideas what could be causing the problem?>

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    Chris Annin
    Dec 28, 2019

    typically when a motor is trembling its the motor wiring for A+A-B+B- does the motor you received from stepperonline have the typical wire colors per the spec sheet here? https://www.omc-stepperonline.com/nema-11-dual-shaft-stepper-motor-bipolar-l-51mm-w-gear-ratio-14-1-planetary-gearbox-9-5mm-rear-shaft-length.html

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    Pierre MarcheboutDSS
    Jan 13, 2020

    Yes, I reviewed cables. I ended up changing the driver. Unfortunately, i also bought another motors. Thanks a lot for you help and for your amazing contribution.

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