This is my first attempt at a modular width track. with this one would be able to print a track with any number of lanes with only a 256mm by 256mm 3d printer bed. At the moment there is a 30 degree left lane turn out, a left side, a right side, and a middle lane. The lane is 240mm long. The lanes fit together with a left side key and a right side hole. I have not yet done test prints of these files. it is recommened to use blue painters tape to hold the lanes together. It is not recommened at this time to use these tracks in an elevated situation.