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Temperature jumps. Thermocouple failure?


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Posted · Temperature jumps. Thermocouple failure?

Hey

I just need your opinion on this:

Jumps In Themgraph

My tempgraph is no smooth line but has breaks in it.

I have checked the connection of the Sensor wires to the small board ontop the printhead, but that seems okay.

My Thermocouple is broken, right?

 

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    Posted · Temperature jumps. Thermocouple failure?

    This is very difficult. I have tried to restore my thermocouple by opening up the metal envelope and trying to separate and insulate the wires with Kapton tape, but failed. The ceramic body is very vulnerable to mechanical stress. Also there is not much room for additional material inside the sensor. This simply didn't work.

    I am now switching to the EPCOS-thermistor i have laying around from my first E3D hotend.

     

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