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Why is the stepper motor from the extrude is getting hot?

I didn´t recognize, but now i feeled and it was hot. Now I measured and the Stepper motor from the extruder is 58,3 degrees Celsius. What should I do?.

Greetings from Germany

Paul

Answer this question I have this problem too

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4 Answers

Hi Paul, what motor are you using and what extruder and printer?

Update (10/25/2019)

Hi, you need to check the Vref setting and lower it to our recomendation, here is the guide for doing that: 00. Stepper Current Adjustment On CR-10S

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I bought your upgrade kit - DDS For Creality3D CR-10 S. and used it on my CR10-5S. And at the end the temperature rises up to 64,9 degress and then the printer stopped with the errror E1 thermal runaway - no idea if that one thing has to do with the other. The system is nearly new - a few month.

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Thank you for help - I will try that and hpe ot helps. lol

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Hi Paul, how did it work out for you?

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Hi Martin

Sorry . for not answering. I´m in the middle of moving to a new apartment. now most is done and more then half of the boxes are unpacked. But - my 3d printer are still unplugged. I will write as soon as i tried it.

Happy and healthy 2020.

Paul

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Hello

  • Now i tried it and it seemed well - I put the Voltage down to 0.42V - from 1.58 . An the stepper motor kept cool. But after finished the first layer i got the message “E1 thermal runaway” and the print stops.

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The message “E1 thermal runaway” comes when stepping to the second layer - and that´s also the moment when the fan starts cooling the layer. Could that irritate the thermistor ???

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Hi, Paul, are you still using the blue silicone sock attached to the hotblock? If not then the part-cooling fan will cool off the hotend.

If you are going to use it without the silicone sock then you need to perform a PID tune in order to let the controller to compensate for the higher power required to keep the hotblock up to temperature. If you still have the silicone sock attached then try with a lower % setting of the part cooling fan and see if it helps. If you are running the part cooling fan at 100% and wants to do this then perform a PID tuning when the part cooling fan is running at 100% and then the heater circuit will compensate for this by doing a PID autotune.

Check here of how to perform a PID autotune: https://marlinfw.org/docs/gcode/M303.htm...

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Paul Schulte will be eternally grateful.
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