... curiosity on the maths involved. A is two 1:1.5 turnouts with centre line thickness set at 88mm and a reduction of 7.9% B is two 1:4 Gaunt turnouts with centre line thickness set at 50mm and a reduction of 5.4% It's interesting for me as the wider parallel track spacing doesn't take up any more length with the 1:1.5 turnouts, yet provides more spacing to get 3 led's in the same space. The track width is fairly similar around 7mm. Just fun to experiment occasionally... 479_101447_530000000.jpg posted: 10 Jun 2020 20:21 from: Gordon S Martin Wynne wrote: Gordon S wrote: If you recall earlier we talked about the bump that was visible on the turnouts and you suggested using A4 Gaunt turnouts to solve the problem, hence why I used them. Hi Gordon, I suggested using gaunt turnouts, but they can be any angle. You used 1:4 because that made it easier to convert from the A-4 turnouts you had started with. In any event, I fixed the ...