AutoCAD 2010 :: 2D Non Perspective Views From 3D?

I am really struggling with this and I am not sure why. I simpy want to place a camera or create a view of a 3d drawing and plot a 2d elevation. I want to be able to clip the view to only show that object.

Example: 3d duct drawing, duct risers, I want to pick on riser and arnage it on a viewport. I can get a camera placed but each time it defaults to a perspective view and when I change it to non-perspective the camera disapears.

So I setup a view but no matter what i do I cannot get the clipping to work correctly.

tutorial on createing 2d views of 3d drawings.

I don't want to use sectionplan or a live section the duct program I am using doesn't create actual cad style solids so that won't work.

I really can't beleive I cannot just select two points to determine the view direction and the apply it to the viewport. I have to be missing something.