About this 3D model
This is a series of four straight HO-scale railway sections complete with sleepers. The lengths are; 45mm, 90mm, 135mm, and 180mm to suit your printers bed size. The tracks have been designed to print without support Pin holes have been added to help secure them in place. They were original generated with my parametric railway generator which you can find on my website: https://techmonkeybusiness.com/articles/Parametric_Railway_Tracks.html