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ultimaker 3 not printing correct size


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Posted · ultimaker 3 not printing correct size

6 months ago i printed a calibration cube that is 20x 20x20 and it was exactly 20x20x20. when i print it now it is 20,3 in the x 20,1 in the y and 20 in the Z i printed the cube multiple times with the exact same results so that should rule out backlash from the belts. just for good measure i re tightened  the short belts but with no change. does anybody know why 

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    Posted · ultimaker 3 not printing correct size

    It mostly depends on the material, speed, print temperature and so on....

     

    So print as cool as possible and not faster than 35mm/sec. It also helps to equalize all the speeds to the same value. Search the forum here for dimensional accuracy and you will find some posts with the relevant settings.

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    Posted · ultimaker 3 not printing correct size

    Yes, try these settings:

     

    Line Width: 0.4 (all line widths 0.4)

    Wall Thickness: 1.2

    Wall Line Count: 3

    Top/Bottom Thickness: 1.2

    Print Speed: 30

      Infill Speed: 30

      Wall Speed: 30

      Outer Wall Speed: 30

      Inner Wall Speed: 30

      Top/Bottom Speed: 30

    Print Jerk: 30

      Infill Jerk: 30

      Wall Jerk: 30

      Outer Wall Jerk: 30

      Inner Wall Jerk: 30

      Top/Bottom Jerk: 30

    Horizontal Expansion: -0.03 

     

    These settings can also help:

    Outer Before Inner Walls = checked

    Combing Mode = off

    Slicing Tolerance = Exclude

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