Jump to content

Old vs. New UM3 Printhead Bearings


dfrez

Recommended Posts

Posted (edited) · Old vs. New UM3 Printhead Bearings

This is more of a PSA than anything, since I didn't find anything in my search about needing to replace them. I wanted to share the difference that new printhead bearings on my UM3 made. I bought the machine used and it seemed that no matter what I did to the speed/accel./jerk settings, I could not get rid of the ringing. 

 

Some background:

I was working on the printhead and noticed that the Y bearing felt smooth when moving the shaft axially, but if I spun it I could feel the bearing binding. The X (long) bearing did not exhibit this behavior, it was smooth axially and rotationally. Initially, I didn't think this was an issue since the bearing is only meant for axial motion. I also noticed some play in the printhead when it was installed. I compared it to my UM2+ (which had much less play) and I figured the bearings could use a refresh. 

 

Needless to say the new bearings made a huge difference. Both cubes were printed with the Default PLA settings in Cura. The green cube was printed with the old bearings and the orange cube is with the new bearings.

 

IMG_1483.thumb.jpg.e9349fb09103bb9b7691d9cb4d837c18.jpg

IMG_1481.thumb.jpg.f08ed4a7622f5b84947ae45e6c455073.jpg 

Edited by dfrez
  • 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

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
         
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    ×
    ×
    • Create New...