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Stepper Motor get way too hot

Mairguez
2025-04-28
2025-04-30
  • Mairguez

    Mairguez - 2025-04-28

    Hey there, after few days of trying to make this work and looking for answer in the forum, I'm creating a new post.

    Config :
    DRV8825 with nema14hm11-0404s motors.
    Arduino nano

    The build went very well thanks to an very well detailed manual (thank's Robert !)

    I'm now setting the rotator on the windows app, but motor get way too hot, I can barely touch it

    800 steps configured in myConfig.h
    I tried half steppng, ful step mode, lowered motor speed delay, increased it, the motor kind of vibrates, making a lot of noise and gets very hot.

    Got the same problem on myFocuser, I think the issues are related.

    Spent a lot of time deremining the correct wiring, fiddled with the pot to get it right. But still, it kind of puzzles me. THat's why I'm reaching for a bit of help.

    Best regards.
    Thibaut

     
  • Mairguez

    Mairguez - 2025-04-30

    I tried different things, and stuff that works the best for now is 1/4 steps, motor speed delay 1500.

    Motor-shaft-360 is 1600
    rotator-360 is 12000

    Now I got to make home sensor to work ..

     

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