Pen mode is good as its a simple b/w drawing but its showing the interior of an object where I want the outlines only. One object sits partly inside another, I dont want to union them as if I ever need to alter the one and remove it from the other I cannot. (Unless there is an unUnion command weeks later or so). I have grouped them BUT the internal part of the one object is visible in my cross section I have sliced myself through it.
Hide Internal , one of the options in pen, doesnt stop Pen from showing such.
If I use shaded view it vanishes but a page of colour is a lot of printing ink at A3.
jpg is a portion of the image I am working on.