... Again, thanks. Derek posted: 7 Sep 2020 03:54 from: Martin Wynne DerekStuart wrote: I've tried it again. It still cannot be done using 4 turnouts and one diamond as per the LNER diagram, Hi Derek, You have rather lost me there. What makes you think there is a single diamond? Did you remember to set: P4/S4 gauge CLM angles generic V-crossings for the turnouts I've had a dabble at it, and it matches the drawing in the NERA book almost exactly: 2_062228_220000000.png BOX file below, 14 partial templates. Using CLM angles gives 1:5 CLM at the centre (CLM angles add and subtract almost exactly, 2 x 1:10= 1:5). Templot calculates it at 1:4.99 CLM. The angle for the type 1 middle V-crossings is 1:6 CLM. Templot calculates it at 1:5.99 CLM. I had the advantage of the new find intersection function for that. The two sides of those vees are done separately. To get the ...