Pitchcar Game Rails

I made my own copy of the Pitchcar game and needed some rails. The track pieces have the same size slots as the original game pieces. Through a little trial and error I was able to come up with a rail profile that wedged itself nicely into the track pieces. The top of the rails are about 3.4mm wide and have a wedge profile toward the bottom that narrow to about 2.4mm. They straight rails are 21.5cm long and the curved rails about 26cm along the arc.