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Need help with this gaps in top layer

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Posted · Need help with this gaps in top layer


I use Cura 4.8.0 on my Windows 10 machine. I have a small part to print. I used the draft settings, changed 'wall line count' from 2 to 3, changed infill from 20% to 40%.
If I slice I get a small gaps in the top layer of the lower part, see image:


If I set wall count back to 2 then the gap disappears:



How to get rid of the gap if 'wall line count' is set to 3?

The *.3mf file is attached.

Thanks for any help...


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    Posted (edited) · Need help with this gaps in top layer

    This might actually be a bug.  This is the second model with this problem in a week.

    If you change the "Inner Wall Line Width" to .3 the gap goes away.

    It's such a small part, why not change the infill density to 100%?  That makes the gap go away as well.


    This problem seems like it comes up when there is a small dimensional difference between the top feature and the base feature.  Cura typically puts the walls of the top feature on a solid base but in this case (and the other) this doesn't happen unless other settings are fudged.


    EDIT:  Here is the other instance. "Gap in Wall"



    Edited by GregValiant
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