Jump to content
Ultimaker Community of 3D Printing Experts

UM3 Feeder arm ground down


Recommended Posts

Posted · UM3 Feeder arm ground down

As per attached pic. The filament has caused a channel in the feeder arm to be ground out. This stops the filament feeding properly and means it grinds.


We have over 20 UM3's in our lab and it has just about happened to all of them now. We have swapped the arms on feeder 1 and 2 but are now looking at having the replace the arms.


Does anyone know if you can just purchase the arm pieces? We only seem to be about to find the whole feeding mechanism and it's expensive to replace them all.






  • Link to post
    Share on other sites

    Posted · UM3 Feeder arm ground down

    All parts used to be for sale separatly, but I also noticed the "spare parts book" only shows the full assembly. 


    As you can see here I bought my first feeder completely from parts....



    Here's the partnumbers of the arm, I would say just try to order it from your reseller...



  • Link to post
    Share on other sites

    Posted · UM3 Feeder arm ground down


    here's a part of an older thread, mentioning your problem:


    On 7/18/2019 at 5:13 PM, hughwyeth said:




    You're a genius dude, thanks so much for your post. I'm 99% sure this is it (or at least part of the problem)- when i originally saw the arm had this dip in it I thought it must be part of the design but on removing it, it's clearly been worn out. 




    I take it I need to contact a local reseller to source this part? Is there a more durable alternative version out there?


    On 7/18/2019 at 8:31 PM, Enigma_M4 said:



    the part-numbers are 1967 (the worn-out half on the photo) and 1968.


    One also realy useful solution would be this:


    Works pretty well for me.





  • 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...