This ONLY works with 3D SOLIDS. Surfaces and objects made up of surfaces won't project:
In your 3D Model drawing, create a viewport in one of the P-S Tabs using SOLVIEW (BEST way is to get it from the 3D "SOLIDS" toolbar, as the command is already set up for your use). Then position the model any way you want in that viewport. This could be an ISO style zoom position or any of the ortho views. I like to create 4 viewports and have the same SOLID model showing up in each (TOP, FRONT, RIGHT & ISO), so that I can keep track of what I am doing. Now that you have the view port, run the SOLDRAW command. Pick the viewport.
The SOLDRAW command will project forward to a plane parallel to your view. It will project simple 2D lines that are the view of the 3D Model you had in the viewport. They are all co-planar (z=0). ACAD will turn off the layer showing the 3D model for you, and will leave showing ONLY the 2D linework you are seeking (Solid lines and Hidden lines, if you selected that option, or visible lines only...). This is true for all viewports, even the 3D ISO view.
You then go into each viewport and W-Block out the 2D picture made up of the lines projected from the 3D model. Collect these W-Blocks together into one drawing, and give them to your user.
Side-note: I think early versions of acad LT contained this same functionality- you could make a 2D Soldraw of the 3d Model, but you couldn't edit the 3D model itself. I think this has changed, where you have to do all of this in the full ACAD and hand it over, but I'm not sure; I haven't had my hands on a session of LT for some years now. Any thoughts?
Tks & Good luck-
C. Fee