Jump to content
Ultimaker Community of 3D Printing Experts

Problems printing Ultimaker TPU

Recommended Posts

Posted · Problems printing Ultimaker TPU

I have been really struggling to get a decent print using the Ultimaker TPU on my S5 and S3.  I have used both the red and blue version of the Ultimaker TPU95A, and I am using all the suggested slicer settings in Cura 4.13.1 for the Ultimaker TPU profile, but the end result of my prints is still unacceptable.


I am attempting to print some flexible vent lines for an assembly mockup.


The print typically starts off fine, but it will almost always stop because of the flow sensor error.  When this occurs, i unload/reload the TPU and that will typically get it to start running again, but i think i get the poor print quality after that.


Anyone know what is causing the flow sensor errors?   This past time, i just got fed up with the print stopping every 30 minutes so i disabled the flow sensor and the print was horrible after that.


Below are some pics of the slicer setup and the end results after printing.  The bottom parts of the hose and the support look great, but after a certain height, it turns to garbage quickly.


I will also attach the obj files for these hose assemblies.  


Any help would be greatly appreciated!

Thank you




DT-internal-NOclip part b.obj DT-internal-NOclip part a.obj

  • Link to post
    Share on other sites

    • 1 month later...
    Posted · Problems printing Ultimaker TPU

    it's probably grinding at the feeder wheel.  decrease the feeder wheel pressure to minimum, also lubricate your filament with some oil to help it slide inside the bowden tube.


    I believe the flow sensor just detects when the feeder wheel is still clamping onto the filament, so when it gets ground down, it sets off the flow error

  • 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
        • 12 replies
    • Create New...