Jump to content
UltiMaker Community of 3D Printing Experts

Olsson Block Help

Recommended Posts

Posted (edited) · Olsson Block Help

We have an UM2. I finally upgraded the hot block to an Olsson hot block and Micro Swiss Wear Resistant Nozzle.



Of course, now the UM2 and I look like we both forgot how to print things.


I had to raise the temp to print PLA. Is this normal?


PETG is making me lose my mind.


I used to get good prints like this.




Now it looks like this




It is hard to see, but the hairs and bumpy surface happen where the "base" of the part stops and the "walls" start.




It is easier to see this on this larger part.






Here is a section view.




I am using Simplify 3D and always have. Same materials. 


I didn't change any of the settings during this print.


This artifact does not align with the layer that the fans start (50%).



Any ideas??? Please and thanks.



Also, I was getting temp errors so I wrapped up the hot block in ceramic wool. Is that normal?






Is there a magic nozzle that doesn't stick to PETG?










Edited by BrayChristopher
  • Link to post
    Share on other sites

    Posted · Olsson Block Help

    What kind of nozzles are you using?


    I had to up the tempurature a bit on my 3dsolenx block to acheive the same quality as I was getting on my stock block.


    Also, have you tightened the nozzle to spec while warm, then done a bed leveling?

  • Link to post
    Share on other sites

    Posted · Olsson Block Help

    I am using the  Micro Swiss Wear Resistant Nozzle, which is a brass nozzle with nickel composite coating.


    I did re-level the bed.


    I did not tighten the nozzle while it was hot.


    Bed adhesion doesn't seem to be the problem. 


    And I am not getting any leakage between the nozzle and the Olsson block.



  • Link to post
    Share on other sites

    Posted · Olsson Block Help

    Sorry, I cannot Help more, I only gave from my limited experience. My only suggestion is that now you need to figure out the temps again. try a heat tower, see if that helps selecting the best temp?

  • Link to post
    Share on other sites

    Posted · Olsson Block Help

    In case anyone was wondering, it seems that canola oil has solved my problems... for now. 

  • 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
        • 14 replies
    • Create New...