Jump to content

shifted layers of UMO print


ltc

Recommended Posts

Posted · shifted layers of UMO print

My UMO prints have the shifted layers issue. But it only happens in some direction. I have checked the screws which are safely secured. Are there other parts I need to check?

 

Here is the model in Cura.

2014 12 10 151759

 

It is in the layers mode.

2014 12 10 151832

 

This is the print result. One side is fine, and the other side is not good.

IMAG2546

 

  • Link to post
    Share on other sites

    Posted · shifted layers of UMO print

    You may want to check that your x/y axis are properly aligned perpendicular to eachother (forming a perfect cross), allowing the printhead to move freely on both axis... With the printer turned off you should be able to push the head on both axis with one or two fingers, without too much force.

    Also check your electronics cooling and make sure your stepper drivers are not getting too hot (they will miss steps) how hot does your stepper motors get when printing?

     

  • Link to post
    Share on other sites

    Posted · shifted layers of UMO print

    That is a pretty small amount of layer shift so I'm skeptical. Anyway layer shift can be caused by either excessive friction or loose pulley screw. Is this X axis slipping? Obviously only one axis has the problem. Usually the slip is at the stepper motor or the pulley above (the 2 pulleys on the short belt). Most often the motor pulley as this has the most force on it.

    Tighten the hell out of those 2 set screws. The shaft of the tool should twist. If you got your UM from ultimaker then it should also have come with a spare set of silver colored screws (the set inside the pulleys are black). The silver ones are pointier and better. But not mandatory.

    Check that the short X belt is not rubbing the wood. Watch the short X belt while printing. Does it twist one way when moving right and the other way when moving left? If so it is rubbing the wood slightly. Fix this by moving it away from the wood. Either add one washer under each of the 4 plastic spacers or move the pulley closer to the motor (as close as possible without touching - about .5mm).

    Finally, like Tommy says above, check resistance. You should be able to easily move the head with your smallest finger of each hand on opposite blocks.

     

  • 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 5.7 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
        • 18 replies
      • 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
    ×
    ×
    • Create New...