No problem, Trackerman. It took me a fair amount of trial and error to find a way of printing the tracks that made me happy. I ended up designing some "ears" on the outside that provided a footing that stuck to the print bed and was able to be broken away cleanly after printing. There is also some support that goes under the pads and center section. The pic shows the print orientation on the left and what the support and ears look like on the right.
