Problem in NX10

Hi everyone, i want to obtain the 3d solid extrude shape of that closed region(its exactly closed), but when i apply it to that closed curve, it is only making extrusion like in the photo. I wanna obtain the 3d solid extrusion but i can not. Could you explain why? Thanks.
6 Answers

Try to resolve or make geometry better at the asterisk is been shown. If the geometry is to open or overlapping, you get surface instead of solid.

You can check the curve to be closed loop by creating face from curve or also revolve with some axis
You can increase accuracy of dimensions

Did you constrained the arc and the line exactly? For example tangent constrain. Maybe there is a small gap between them, check the connectivity of the arc and line. Hope this helps!