Note, while the connectors for this should work fine with a second piece from this design, I found they did NOT work with the standard tracks you get from the regular one inch commercial track systems. So I don't suggest creating any of these until I reconfigure.
This is meant to work with the popular 1-inch wooden toy trains. It is my first design in OpenSCAD and I intend to cut multiples of these out of 0.5" MDF using a ShopBot.
Having a demanding full time job and two kids, it may take some time before I actually make all of that happen, but in the meantime I figured I'd upload what I had as it may be useful to others trying to make similar tracks.