> Um, I should have stated the problems I was having was due
> to me not being familiar with the tools.

Well, I'm still pretty interested to hear about any kind of difficulties, regardless of where it originates from... :)


> I used the technique of boolean difference from the surface of the train,
> copied the resulting lines and then undo the boolean.

Sooner or later there should be a type of "create curves of intersection" command that would let you do this in a more straightforward way.


> Very pleasant experience thus far Michael!

That's good! :)

- Michael