... make transition function to create a sweeping S-curve transition between your curves at A and B. You can see what I meant by a less geometric and more flowing design. Now we can create another transition for the other running line, and start inserting the pointwork into the curves: 2_292143_000000000.png I changed some of your turnouts to C-10 size. That is always a good size to use if you have room for them when creating curved pointwork, allowing easier radii than shorter curved turnouts. This is the result: 2_292145_330000000.png You can see that this has a more prototypical flow to it in the yellow tracks than your original unmodified blue tracks at the top. Here is the same section when printed out for construction: 2_292148_520000000.png regards, Martin. posted: 1 Jan 2017 11:25 from: drrsenior Hi Martin, Thank you for spending more time on this for me. Your amendments to those couple of running lines really demonstrate how smooth and flowing it can be so I now know what to aspire to! Did you keep the .box files ...