Has anyone made inside corners for an N-Trak layout? With the design I am going to try to build, I will need 2 3'x3' corners to complete a "U" shaped turn around. See drawing for idea of what I'm talking about: Has anyone made these? What kind of turn radius can I get doing this? Any creative ideas on how to handle this? These don't necessarily have to fit N-Trak standards on turning radius.... but I would like to have it at least run smoothly.