Jump to content
Ultimaker Community of 3D Printing Experts

Um2 need help changing configuration.h

Recommended Posts

Posted · Um2 need help changing configuration.h

Hello all.


My sister and i are not that much of programmers. We get the basics a bit.

we have changed the feeder of our ultimaker 2 extended. This we have done because of the many retractions we have in our prints.

The new feeder is a sanjui feeder.


therefor we heard we need to change the configuration.h default steps per unit to another number.

This is because the reduction on the feeder. 


After 10 hours of searching and uploading firmware versions to the printer we are very very stuck.


Every time we fail we could fix it by doin a automaticly firmware update in cura.


How to change just a number in the configuration.h?

We think we need to manually update in cura. But therefor we need the correct version.


can someone help us.


thank you very much in advance


greetings Michel and Marja



  • Share this post

    Link to post
    Share on other sites
    Posted · Um2 need help changing configuration.h

    I strongly recommend you get tinkerMarlin here:



    Once installed you can change the steps/mm (and even direction) in among the menus - I think under motion settings.  



    Alternatively you could read this long post - building Marlin has a lot of steps that con sometimes be confusing:



  • Share this post

    Link to post
    Share on other sites
    Posted (edited) · Um2 need help changing configuration.h

    Thank you a lor gr5


    this night i was finally able to change the configuration.h file.

    sadly this topic wasn't approved by moderator and i could not change the topic.

    But more problems came when the feeder motor was turning the wrong way.

    Idiot me just turned around the sanjiu feeder but when all finally worked i noticed the

    teeth of the feeder where upside down. stupid stupid :D:P


    So tinkerMarlin is the way to go


    We will try and read the post tonight.


    ANd we thank you again. I love it that the people in these community's help each other. 

    We have multiple ultimakers working here and hope we could help someone else sometime.





    Edited by micheld1984
  • Share this post

    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

      • Talking additive | The 3D printing podcast
        Why should we be the only ones asking questions? Join us and ask Jabil all your questions on September 22nd 5pm CET
          • Like
        • 3 replies
      • Ultimaker masterclass: Optimizing your Ultimaker Cura workflow
        Save your seat for either broadcast on September 23.
        What will you learn?
        · Best practices for iterative print preparation and every lesson you should learn from each print
        · The right way to use per-object settings and when they are most useful
        · Easy-to-use resources for anyone who wants to develop their own printer definitions, plugins, or print profiles
        · How to optimize print profile settings and whether to “keep” or “discard” changes
        · When is the right time to export your drawing from CAD? (Based on Ultimaker Cura’s surprising power as 3D control software)
        · And a whole lot more tips and tricks!
        How can I join?
        This free masterclass will take place twice:
        1. 11am CEST (5pm SGT, 5am EDT)
        2. 5pm CEST (11am EDT, 8am PDT, 11pm SGT)
          • Like
        • 0 replies
      • Do you use 3D printing at work? Let us know
        It doesn't matter if you are using 1 Ultimaker or 10, there is inspiration in everything. We're looking for ...
        • 1 reply
    • Create New...