3D Sketch Cut / Surface Cut ?

Hello

I have an Electrode I am trying to Constuct in SW 2011.

I was hoping to Just create a 3D sketch, pick it and then use Feature Extrude Cut Outward's through all.

Is this possiable?

Since I wasn't able to get that to work, How about creating surfaces and then select them to somehow cut outward .

Is this possiable?

A friend said do this:

But my Edge selections total 57 of them soon start going the wrong way and start intersecting with each other

(It's a mess)

Any Suggestions would be appreciated x 1,000 

Thank You

Tony

SolidworksParts And Features