Need help with multi-taper surface

[Anonymous]

I'm trying to model a button to create a housing for it, and I'm having some trouble with the top surface. As you can see, there is an overall dome shape, but the corners of the frame then taper down.  Cutting just the dome shape in I can get, but  not sure how to get those corners done. Anyone have any thoughts on this?

[TheCADWhisperer]

File>Export and then Attach the *.f3d file of your attempt here.

[Anonymous]

I actually just figured this out. Making the radius of my cutting dome a bit bigger caused exactly the effect I needed. Just took a bit more trial and error. Thanks.