HC93

Problem solved, thank you very much! In my case, I had no overlapping vertices, but some of the faces had bad orientations. I modified it on the Blender model and now it's good. All my best, Hugo

Good evening, I'm modeling a kind of hollow cube with Blender in order to print it (first image). When Cura slices it (just after import, with basic settings), the top is filled (second image). When I rotate the cube of 45 degrees, the model is sliced "correctly"(third image), but I don't want print it in this position. Do someone knows what go wrong? Thanks you, Regards, Hugo