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Cura 4.6.0 slicing hollow cylinder not as expected


jessegibson
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Posted · Cura 4.6.0 slicing hollow cylinder not as expected

Hello community,

 

I've created a hollow cylinder with a wall thickness of 1,2mm. My nozzle has 0,4mm in diameter. As you can see there are lot of terrible marks on the surface. Furthermore in my understanding, if i set the wall line width to 0,4mm and the wall thickness to 1,2mm, the wall should be printed with three lines as infill. But thats also not the case. What am i doing wrong?

 

Thanks in advance! 

 

cura.thumb.JPG.b7976e6863a8c37b3870f15566d27bf8.JPGtest.stl

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    • 1 month later...
    Posted · Cura 4.6.0 slicing hollow cylinder not as expected

    I've been having a similar issue where there are a ton of unnecessary travels printing cylinders.  I'm running 4.6.1 but also tried 4.4 and 4.3 and had the same issue.  I loaded your STL to compare and noticed if you disable "Compensate Wall Overlaps" the surface roughness disappears but there is still a lot of unnecessary travel.  Changing the combing mode affects the pattern of movements but I can't find any combination that slices as expected.

     

    ("test" is from your test.stl file, "tube_test" is the project I was using, which is a larger cylinder.)

    test_comp_off_travels.png

    test_comp_off.png

    test_comp_on.png

    tube_test_travels.png

    tube_test.3mf tube_test.stl

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    Posted · Cura 4.6.0 slicing hollow cylinder not as expected

    Thanks @gr5!  It looks like the development build definitely addresses the behavior somewhat but not totally.  However, going through my preferences more, I found changing "Z Seam Alignment" to "Shortest" (instead of "Sharpest Corner") or changing "Seam Corner Preference" to "None" (regardless of seam alignment) seems to totally fix it in both the dev build and in 4.6.1, at least a for a simple cylinder.

    tube_test_travels_devbuild_noseampref.png

    tube_test_travels_devbuild.png

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