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