Side view arc

[dcroose]

Hi All,
I am a newbe to emachineshop and I can't seem to get it to do what I need. I am trying to make a part that is 1.5" wide and 8" long. At about 5.5" I want the piece to narrow down to 1/4" centered. So far so good. I have the piece drawn and the 3D view shows the part as I expect. Now comes the problem. I want the 1/4" part to be rounded on the bottom along the 2.5" length of the narrow part. I expected I could do this by looking at the side views and drawing an arc on the end of the piece and deleting all outside the arc. The thing is when I go to either the right or left view I see no indication of the part narrowing. From the side view it looks like the part is all the same width. I have attached the drawing. Can someone please tell me what I am doing wrong or how I can get the side view to accurately reflect the drawing as seen from the top view?
Thanks
dcroose

[Tech2]

Remove the thin protrusion from the Top view (and close the main rectangle).
In the right view draw a D shape with Z = 2.5.

[dcroose]

Thanks for the answer. worked like a charm.