Z Scale Offset Dual Tunnel Portal with Overhead Steps Valena Miller

I have just started designing Z scale stuff as my son has one of these train sets and trying to buy anything Z scale is near to none existent. Build on a 0.2mm setting using supports ( pillars are better ) This is built in one piece and can be painted to suit after the build. Us a none warping material for best results or a heated print bed if not.