Jump to content

Recommended Posts

Posted · My UMO+ will not print a perfect circle

I have an UMO+ and it will not print a good circle on the factory settings. Therefore, I tried the nickel calibration test on thingiverse, to calibrate my X and Y axis, I have done it over 11 times, and have followed the instructions to change the steps/mm. However, nothing I have done has fixed this problem solar, and it is very difficult to make accurate prints if my printer cannot make a circle. If anyone can help please let me know what I need to do. image1.thumb.JPG.333347aaa947cd2bddbb95ebdf72c38e.JPGimage2.thumb.JPG.14f06a22f3c33fbfd0091bf3530179c0.JPG In these photos the rectangle at the top is supposed to be square and the oval thing direct under it is supposed to be a circle.

image1.thumb.JPG.333347aaa947cd2bddbb95ebdf72c38e.JPG

image2.thumb.JPG.14f06a22f3c33fbfd0091bf3530179c0.JPG

  • Link to post
    Share on other sites

    Posted · My UMO+ will not print a perfect circle

    Also check and recheck the calibration. On umo+ mxl belts at some speeds it's easier to see even a small error in calibration (I mean even a half millimeter).

    On the long run. Print and install twisterblocks by chopmeister and if you really care about precision ditch the bad umo/umo+ mxl pulleys and upgrade to gt2 (the ones um2 uses). I changed my 3 machines to that (two on the assembly day) and it's just fantastic (slightly better but noticeable).

    About t gt2 upgrade on umo/umo+

    https://ultimaker.com/en/community/15874-mxl-vs-gt2-print-results

    A better side blocks:

    https://www.youmagine.com/designs/twisterblocks

  • Link to post
    Share on other sites

    Posted · My UMO+ will not print a perfect circle

    You probably have a bit of backlash caused by loose belts:

    http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide#circles (UM2 is pictured but it applies to your UMO as well)

     

    Thank you, I did what you said and it really helped. After tensioning those belts I followed the instructions on this link, http://blog.mcmelectronics.com/post/3D-printer-calibration#.VoMYr4RlngG ,to calibrate my X and Y axis and I now have perfect circles.

  • Link to post
    Share on other sites

    Posted · My UMO+ will not print a perfect circle

    Also check and recheck the calibration. On umo+ mxl belts at some speeds it's easier to see even a small error in calibration (I mean even a half millimeter).

    On the long run. Print and install twisterblocks by chopmeister and if you really care about precision ditch the bad umo/umo+ mxl pulleys and upgrade to gt2 (the ones um2 uses). I changed my 3 machines to that (two on the assembly day) and it's just fantastic (slightly better but noticeable).

    About t gt2 upgrade on umo/umo+

    https://ultimaker.com/en/community/15874-mxl-vs-gt2-print-results

    A better side blocks:

    https://www.youmagine.com/designs/twisterblocks

     

    That would probably be the best long term solution. That will be the next upgrade that I add to my UMO+. Thank you for the help.

  • 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

      • UltiMaker Cura 5.9 stable released!
        Here comes Cura 5.9 and in this stable release we have lots of material and printer profiles for UltiMaker printers, including the newly released Sketch Sprint. Additionally, scarf seams have been introduced alongside even more print settings and improvements.  Check out the rest of this article to find out the details on all of that and more
          • Like
        • 5 replies
      • 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
          • Heart
          • Thanks
          • Like
        • 7 replies
    ×
    ×
    • Create New...