Extruder engine temperature



  • Hi guys, I mounted this LDO engine SLIM_POWER_LDO-42STH25-1404MAC Dc 1.4 Amp (0.9 °) and I set the current M906 = E1100 (79%).

    • Do you think it is normal that the temperature, after about 1 hour of printing, is about 49°C measured on the back and about 40°C on the side?
      (All other XYZ engines are 85% and do not exceed 35°C).

    • Maybe I have to decrease the current value in M906?

    Thanks in advance
    Luca



  • Steppers, even cheap ones, can generally be operated at a surface temperature of 60C with no worries at all, and probably 80C if you want to push them hard (maybe with a shortened lifetime, but not immediate failure). If you can put your hand on them more than 5 seconds, they are fine! You are running yours very gently.
    For the past month, I have been pushing mine to 60C surface temperature to run the printer faster to print frames for face shields. I normally stay around 40-50C.



  • @luc said in Extruder engine temperature:

    SLIM_POWER_LDO-42STH25-1404MAC

    You have nothing to worry about. LDO actually specify a winding temperature, which in the case of that motor is 130 degC. Winding temperatures are generally about 50C more than ambient, so a 130C winding temperature means that you could run that motor inside a heated chamber temperature of 80C. For info, LDO also make a high temperature version which has a winding temperature rating of 180 deg C meaning that it could be used in a heated chamber at up to 130 deg C.



  • @deckingman said in Extruder engine temperature:

    @luc said in Extruder engine temperature:

    SLIM_POWER_LDO-42STH25-1404MAC

    You have nothing to worry about. LDO actually specify a winding temperature, which in the case of that motor is 130 degC. Winding temperatures are generally about 50C more than ambient, so a 130C winding temperature means that you could run that motor inside a heated chamber temperature of 80C. For info, LDO also make a high temperature version which has a winding temperature rating of 180 deg C meaning that it could be used in a heated chamber at up to 130 deg C.

    @deckingman
    I have this same motor and googled my way in here looking up the temperature rating. I can't find it on LDO's website. where did you pick up the into that the motor is OK to 130c?

    I run a 50c chamber.


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