Support seems very sturdy compared to the wooden ones we've been using, that get knocked over all the time. Thank you for sharing this!
Accidentally printed first one with 0.1mm layers, so it took a while but came out nicely. Default width snaps perfectly around some brands of wooden track, but was too small for others (we have a variety). I'll be making some measurements of those tracks and adjusting the SCAD file to fit those (and probably print in a different color so they don't get mixed up).