Jump to content

Inconsistent layers on UM2+


elnadav12

Recommended Posts

Posted · Inconsistent layers on UM2+

Hello, I have an UM2 with the upgrade kit installed. For some time now I can't get a smooth print. I performed some maintenance recently to try and solve this and some other issues.

All X,Y,Z shafts, bearings and belts were replaced. The heater block and PTFE coupler were replaced as well.

Yet, prints keep having inconsistent layers, my best description would be that layers are "sticking out". Is it over extrusion?

I have eliminated inconsistent filament diameter, as I tested multiple rolls of Colorfabb PLA/PHA and a brand new roll of Ultimaker white PLA.

During maintenance I also cleaned the lead screw and nut and applied new grease.

What could cause such issue? I'm really frustrated...
IMG_4730.thumb.jpeg.bc15004150f0df0357041fcfbea1c669.jpegIMG_4727.thumb.jpeg.679b89dfa903f57a64ddc495b0efbaa6.jpeg

IMG_4783.jpeg

  • Link to post
    Share on other sites

    • 2 weeks later...
    Posted · Inconsistent layers on UM2+

    Hi @elnadav12,

     

    Been away for some times..

     

    Just wonder if your nozzle is just too big or maybe to much worn?

    As you've changed parts in order to any remove mechanical play(?). This lines might move slightly in and out due to worn out -or too big nozzle size. Have a look at this -I'll assuming you're using a standard size 0.4 mm. 

    However, your nozzle tip looks "some" worn to me (see last picture).

     

    Good luck.

     

    Thanks

    Torgeir

     

     

  • Link to post
    Share on other sites

    • 1 month later...
    Posted · Inconsistent layers on UM2+
    On 4/29/2022 at 10:15 PM, Torgeir said:

    Hi @elnadav12,

     

    Been away for some times..

     

    Just wonder if your nozzle is just too big or maybe to much worn?

    As you've changed parts in order to any remove mechanical play(?). This lines might move slightly in and out due to worn out -or too big nozzle size. Have a look at this -I'll assuming you're using a standard size 0.4 mm. 

    However, your nozzle tip looks "some" worn to me (see last picture).

     

    Good luck.

     

    Thanks

    Torgeir

     

     

    Hi, thanks for the response. It's a brand new 0.4 nozzle.

    I think I resolved the issue, I noticed the feeder is "ticking" at low speeds, probably not getting enough current.

    Although, when loading filament I tried to pull it as hard as I could and it kept feeding.

    I looked online and found a new official "beta" firmware for the UM2+ that was released quietly in 2018.

    I installed it and prints seem perfect now. Also fixed the ticking noises.

    https://github.com/Ultimaker/UM2.1-Firmware/tree/UM2.1_JarJar/releases/beta

    If you read this and have the same issue, just download the HEX file and upload it to the printer in cura 🙂

    • Like 1
    Link to post
    Share on other sites

    Posted · Inconsistent layers on UM2+

    Hi @elnadav12,

     

    Thanks for the feedback, great finding.

    I'm using the same firmware version (slightly modified for my printer).

    Uneven feeding can occurs due to too low current setting, Extruder current setting is 1250 mA.

     

    Good catch.

     

    Thanks

    Torgeir

  • 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
          • Thanks
          • 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...