... : Exhausted due to too many construction zones? Hi Stefan, No, too many years. What was it you were asking about? Oh yes... In my experience you can safely ignore any radius specified by Peco. This is probably somewhere near. It is the best I can do without an actual turnout in my hand. I took the dimensions from the rule you helpfully included in your photo: 2_151827_020000001.png Here are the settings I ended up with. Note the s prefix to enter model dimensions in mm: 2_151827_020000000.png The bottom 2 dimensions are used only to position the rail joint marks on the template. You can ignore them for the purpose of creating the geometry. What you do is start with a turnout of the required crossing angle (1 :5) and set out* the position of the required blunt nose -- I guessed 320mm overall from your photo. Then keep trying a different curved switch radius until you get a match to the blunt nose position. You can tweak it by adjusting the crossing entry straight. If ...