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Solved The extruder stepper motor jitters

Discussion in 'Troubleshooting' started by mclemens7, Aug 24, 2017.

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  1. mclemens7

    mclemens7 Member

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    Ok the extruder stepper motor jitters. I have tried other motors, tried different cables. Checked if the stepper motor drivers were burnt out, Nope nothing. Then reuploaded the firmware. Please help

    Here is a video

    https://www.youtube.com/edit?o=U&video_id=x6HUPxF6iHI
     
    #1 mclemens7, Aug 24, 2017
  2. Geof

    Geof Volunteer Moderator
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    If you've checked those and all are in fact good you have a bad ramps or arduino, walk us through how you did these checks ?
     
    #2 Geof, Aug 24, 2017
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  3. mclemens7

    mclemens7 Member

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    See I don’t know how that could happen. All these parts were working yesterday then when I went to change the filament nothing worked.
     
    #3 mclemens7, Aug 25, 2017
  4. Geof

    Geof Volunteer Moderator
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    No video found on your link so all I can do is tell you what I would suggest looking at based off the information you gave me.

    You should likely double check to make sure you didn't knock the extruder motor cable loose when you were changing filament and that nothing is jamming up the gregs wade (for instance if the large gear with the nut is to tight it just wont work).
     
    #4 Geof, Aug 25, 2017
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Same way your car can work fine until an alternator dies :)
    Or a tire blows.
    While something like that is usually a stepper driver issue, if you swapped wires to test another stepper on that driver and it worked ... then it is the stepper. If another stepper on the same driver also jitters then it is the driver or the boards.
     
    #5 mark tomlinson, Aug 25, 2017
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  6. Geof

    Geof Volunteer Moderator
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    as far as this :
    thats typically how things break- they work fine until they dont.
     
    #6 Geof, Aug 25, 2017
  7. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    If the jitter is what I think it could be then lower the acceleration value in firmware for the extruder, no stepper speeds up instantly and Marlin put unrealistically high acceleration values in the firmware for all steppers.
     
    #7 WheresWaldo, Aug 25, 2017
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  8. Bryson

    Bryson New Member

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    This says it is solved. Can you please help by providing what particular response helped solved your issue? My issues is the stepper jitters briefly right when it prints the skirt and then again much higher on the print at about 100mm in height. I have a robo3D r1+. Any suggestions. The filament also seems hard to pull out, i usually have to extrude it a little and then pull it out. Could this be just a simple clog?
     
    #8 Bryson, Aug 30, 2017
  9. mclemens7

    mclemens7 Member

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    It could be a simple clog. Or it is not hot enough. How hot are you putting your extruder to and what typ
     
    #9 mclemens7, Aug 30, 2017
  10. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Start a new thread with all your specific details.
     
    #10 mark tomlinson, Aug 30, 2017
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