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Posted · Need help. Missing Top layer

When I am slicing my model on one of the models it is not adding the top layer on one of the models. If I drop the model count down to 2 it the top layer, but for some reason when I got more than 2 it starts taking away the top layer. I am using the Ender 3 V2. I added a picture of the what I am getting with the preview.

 

image.thumb.png.3e8b32874f686e45d4815d85cddb30b8.png

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    Posted · Need help. Missing Top layer

    1) Are these printing "all at once" where it prints one layer of all 4 parts and then moves up a layer and prints the next layer of all 4 parts?

     

    Or are you printing one-at-a-time and the problem is only on the final model?

     

    2) Cura has an amazing plugin to test your model to see if something is wrong with it and can repair a very few of the many potential problems:
    In the upper right corner of Cura click "marketplace" and make sure you are on the "plugins" tab and install "Mesh Tools".  Then restart Cura.  Now right click on your model, choose "mesh tools" and first choose
    "check mesh", then "fix model normals"  to see if that helps.  Cura doesn't fix most issues so...

     

    My guess is that your normals are backwards on the top surface.  Maybe.

     

    3) If #2 doesn't fix it, then please post your project file: go to menu "file" "save...".  The resulting file contains not only your STL but the scaling, positioning.  Also it has your machine (printer) settings, your material settings, your profile used, and settings that you overrode.  Please post that here.

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