Not working extruder stepper motor

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This topic contains 4 replies, has 2 voices, and was last updated by  Jeffeb3 2 weeks, 5 days ago.

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  • #49630

    tor99
    Participant

    Hello from Russia. Gathered according to your drawings CNC. Filled your firmware . Can’t run the extruder. He’s heating up. But the stepper motor does not twist. Rearranged and the engine and 8825 on the X-axis it works. Please tell me where to find the fault.

    #49632

    Jeffeb3
    Participant

    The extruder needs to be hot to extrude. The firmware has safety checks to avoid cold extrusion. I don’t know what the limit is, but if you heat it to 190C then it should extrude at that temperature.

    #49636

    tor99
    Participant

    Heated to 220 With the engine not spinning

     

    #49637

    tor99
    Participant

    The standard mk8 extruder

    #49640

    Jeffeb3
    Participant

    Hmmm.

    What commands are you using to try to move it?

    I can’t think of another reason it could be a software issue. If you swapped the motor and 8825, then it must be a problem with the ramps or Arduino.

    You could swap the pins of X and E0 in the firmware (pins_Ramps.h). Then test like that. If that moves X (which is connected to the E0) then it’s something in the software or your command. If it doesn’t, then it’s something broken in the Arduino or the ramps board.

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