I'm making a simple model of the GE90 so that I can export it into ANSYS for simulation (currently I'm getting an error at the surface where the interior parts meet in ANSYS when meshing). I found out that parts of the model actually were overlapping for some reason when revolving and I have absolutely no idea how to resolve this problem. This is happening at all the places where I have used fillet in the sketch. Anyone know why the curves of the fillet are intersecting and how to not let that happen when revolving?