Hi Tony,

> Having trouble getting the arc/ellipse (like in the other mans post)
> to extrude and stay as a solid.

An extrusion will only be a solid with end caps if the curves you are extruding form a totally closed loop.

If you have some space between the ends of the pieces that you are extruding then that could be the problem.

Can you please post the 3DM file with the ellipse that you are having problems extruding so I can take a look at it? It helps a lot to be able to see the actual file you are working with to be able to give you better feedback.

- Michael