Jump to content
Ultimaker Community of 3D Printing Experts

Temperature jumps. Thermocouple failure?


Recommended Posts

Posted · Temperature jumps. Thermocouple failure?


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?


  • Link to post
    Share on other sites

    Posted · Temperature jumps. Thermocouple failure?

    Jep. The isolation of the wires in the sensor is open. They make sporadic contact to the metal hull that envelopes the ceramic body. I am trying to fix this with kapton tape, but I will need a new one.


  • Link to post
    Share on other sites

    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.


  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now

    • Our picks

      • New here? Get ahead with a free onboarding course
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 13 replies
    • Create New...