... Zero-length transition curves are not often used, so this won't affect many. But they are sometimes useful, for example in creating a symmetrical Y-turnout with straight exits through the V-crossing: 2_222120_040000000.png regards, Martin. posted: 7 Feb 2016 18:31 from: Martin Wynne Martion Elsworth wrote: I've been trying to find the Make Transition function but can't- where is it please? Hi Martin, Welcome to Templot Cub. Click on a background template, and then this item on its menu: 2_071314_380000000.png The result will be a transition curve between the two curves: 2_071314_380000001.png Your next task is to adjust the length of it, and/or delete the original template(s ), as required. (In the next Templot update version, the length adjustment will be partially automated.) More about transition curves in Templot: http://templot.com/martweb/gs_geometry.htm#transition More about the make transition functions: http://templot.com/martweb/info_files/make_trans.htm Sorry that is over 10 years out of ...