Jump to content
Ultimaker Community of 3D Printing Experts

Grounding the print head for better temperature stability


Recommended Posts

Posted · Grounding the print head for better temperature stability

I had temperature instability problems since I got my Ultimaker like mentioned at the link below.


The temperature monitor was showing ~20C more or less than the actual.

The solution I found is grounding the print head by connecting the gnd wire of the fan to one of the long screws. I don't know why but it shows the correct temperature immediately after grounding. The place I live has a dry climate. Maybe it has something to do with static electricity. Here is a possibly related phenomena:


I hope this helps someone.


  • Link to post
    Share on other sites

    Posted · Grounding the print head for better temperature stability

    Great information, thanks! Some people have found if they seperate the temperature probe wires *farther* from the fan wiring then their temperature is more stable. So just moving the wires a little bit might be enough.

    edit: I'm talking about the probe wires *below* the circuit board on the head. Once the signal goes through the amplifier it is not so sensitive to crosstalk.


  • 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...