I have AutoCAD 2002 and use almost exclusively icons and pull downs. I have
the icon to snap to intersection of two lines, however, I don't think
AutoCAD recognizes intersection of the solids but only lines. However, I'm
no expert. Since I use icons and pulldowns with very few typed commands, I
don't know the typed command to snapping to intersection of two lines.
Perhaps, someone else can help you with that.
I would draw two lines at the edges of the solid(s) (using the NEA or END
osnap) and then snap the appint of this two lines. I guess you must draw
this two lines at a separate layer and turn off the visibility of the solids
layer while snapping the appint.
If you draw the line at the layer edges, of course the solids layer has to
be on. If I want to snap the appint of the lines, I must here turn off the
solids layer. If not I can't snap the lines. May be ist's only here.