i have a big problem printing some STLs. The STLs are open on bottom and top. However, when i enable the top/bottom layers in cura, cura closes the bottoms and tops.
If i disable bottom/top layers by setting them to 0, cura also does not print some horizontal parts inside the model that should be there.
This is my test-part: https://www.thingiverse.com/thing:2115282/#files
Cura 3.1 is used.
I made some screenshots:
1: In solid view you can see the horizontal part in the blue circle.
2: with top-layers enabled, the model is closed on t