Two, 2D images will allow perspective and the sense of a 3D object. If you want an actual 3D model, that is, something you can rotate 360° in each plane, you will need more 2D views. 3D modeling programs such as SketchUp, SolidWorks, AlibreDesign, AutoCad, and so forth usually use six, 2D views to represent a solid.
I suggest that you download SketchUp (it's free) and practice to get a feel for what you want to do. Simply put, you can't do it with just two images.
John