Jump to content

Different x-y offset; circle


Recommended Posts

Posted (edited) · Different x-y offset; circle

While printing a circle the ultimaker makes different offsets in x and y. The  circle/zylinder usually messures 42mm (diameter). I got 42.08mm in x and 42.28 mm in y. Z is no problem. 

I tried different settings already but nothing solved the problem so far. I also did a maintanance of all axes and so on but it didn't help. I didn't do the axle alligment with thealigment tools ultimaker suggets, because if iprint a dice the offset in x and y are almost the same. 

So I figured it must be more of a programmatically problem instead of a mechanical one. Is there a way to programm a solution (maybe via g code) into cura like:

"If circle, do one step in x and one in y, instead of one in x and 2 in y..." 


My Printer:

Ultimaker S5 (model until 2020)

Version 6.5.1

Cura 4.9




Edited by Vitali353
  • Link to post
    Share on other sites

    Posted · Different x-y offset; circle

    Some thoughts:

    1) You can certainly go to the scale tool in Cura, then uncheck the "uniform scaling" and then increase X by 0.2 or decrease Y by 0.2.  This will probably work well for this part.  But other cylinders of different diameters or placed on different locations on your bed may need different scaling.


    2) One common cause of this kind of error is that the pulleys, which have a hole drilled through the center - have that hole slightly away from center.  By maybe 0.2mm.  That means the pulley wobbles a bit and the head, if driven at a constant velocity will actually speed up and slow down a little each time the pulley rotates.  This error is less common on the UM3 and newer printers as Ultimaker no longer relies on 3rd parties to drill that center hole (I believe).  Or perhaps they inspect each pulley now.  Anyway the quality is much better than it was 7 years ago.


    3) I looked at your part and the STL and I hope you rotate the part so the circle is flat on the bed!??  If not then that is your issue.


    4) The problem may be caused by the print head wobbling a bit.  Push the print head towards the center of the printer and then gently push the nozzle left/right/forward/back.  Push almost hard enough for the steppers to move but not quite.  Does it move more in one direction versus another?  Sometimes the linear bearing inside the print head is a little loose.  The one with the rod that passes from front to rear of printer.



    • Thanks 1
    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

      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Like
        • 3 replies
      • UltiMaker Cura 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
          • Like
        • 26 replies
    • Create New...