Cutting out logo shape (using Boolean, or knife on a 2D plane) ruins edges when shaded smooth Hy, sorry if there is simmilar question as mine, I tried to find answer but couldn't.







This is a model of a redbull can and the detail you see is the can opener that has that little bull cutted out.

I tried to cut out the logo from the can opener and just dont know how to do it right so the edges stay smooth when shade smooth is activated. 
  First I cutted out the shape using boolean tool, either on a 2d plane(and then solidify it) or on a already 3D shape. No good result.
  Then I have drawn a shape with knife tool in a mesh, same result. Dont know what else to do.

On the first image you can see shade smooth activated.
  On the second, shade flat.
  On third, its in edit mode so you can see the mesh.

Can someone give me a hint how to do job properly? It would mean a lot to me. Im new at blender still.

Thanks a lot!!
After applying smooth you should tick the auto smooth checkbox in the object data panel.

And maybe tinker with the angle if necessary.