Jump to content

Ultimaker Original - temperature drops of 30°C!


stewe

Recommended Posts

Posted · Ultimaker Original - temperature drops of 30°C!

Hello everybody. I have problems with my Ultimaker Original. It started 3 months ago. Temperature readings were inaccurate as it was too cold or too hot. PLA strated making bubbles. Ok, I though I need new temp sensor. Oredered 2 of them to prevent off times in future.

So I replaced temperature sensor and started test print. Heated up to 220/220°C, but as soon as it started homing, the temperature drop to 190°C and printer continued with heating to 220°C. It reached 220°C again, but real temperature was in that moment about 250°C.

I thought it was a bad temperature amplifier. So I changed the amplifier board. Same story. Reached print temperature of the test print, but as soon as it was homing (reaching 0;0;0), temp dropped to 189°C...

Is there anybody with similar issue? Or does somebody have clue what is wrong? Thanks for every hint and tip!

  • Link to post
    Share on other sites

    Posted · Ultimaker Original - temperature drops of 30°C!

    I would check if there is not a half loose wire in the temperature sensor or to the connection to the board. If I am not mistaken if it can not read the amplifier it keeps the old value. Since you say when homing it changes that makes me think it is a half loose connection.

    Not very scientific advise...

    Wiggle a bit with the cables to see if the temperature readout remains the same.

  • Link to post
    Share on other sites

    Posted · Ultimaker Original - temperature drops of 30°C!

    I recently upgraded my UMO to the Heated Bed Plate and while I had everything apart, I discovered a lot of things had come loose over the years.

    Some of the electronic terminals needed a half twist to be snug again.

    I also had the two back cover pieces to the rods come apart...the nut was still on the thread but it wasn't a lot of fun to put back together!

    Good luck!

  • 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

      • UltiMaker Cura 5.8 beta released
        Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
          • Like
        • 1 reply
      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
    ×
    ×
    • Create New...