HO/OO Model Train Track Spacing Tools

Here we have a collection of track spacing tools for those who use any flexible track system. There are 6 distinct items altogether, each is a separate print. A simple block sized to test the rail spacing which should be 16.5 mm. The block is actually 16.48 mm which provides a friction fit between 16.5mm OO/HO rail. Then I have put two of these side by side and bridged them so as to provide the correct track spacing for parallel rails. I have also put 4 together so as to ensure track is not only separated by the right amount but also straight and parallel. There is also a platform gauge (for British OO scale) which should give the correct separation from the rail and height of the platform. (edit Aug 2022) To provide wider clearances on some track systems I have also included two modified gauges having 67mm center line spacing (not tested).