... that you will see the problem that using the printer uncalibrated has caused. Hi Stephen, I'm not sure there is anything significantly wrong with the printer calibration. You can fit a 1:7 regular half-diamond in 00-SF over Roy's scan quite well if you curve it to 4300mm radius. The problem seems to be that Roy has rotated one half-diamond by a few degrees relative to the other at the centre, which means that the main road rails through the K-crossings are not properly aligned: 2_271057_420000000.png Roy, I'm puzzled what you are trying to do here? Why not simply forget this old scan, and start again with a new 1:7 slip? It would be much quicker, and a better result, than trying to match this old one. regards, Martin. posted: 27 Jan 2014 17:01 from: roythebus The problem is where the blades are, there is insufficient clearance for the flanges to pass through at 212X1 and 212T8. There isn't a problem with the K crossing. The running ...