... traction feed and common-return respectively. 3. the V-crossings are polarity switched by connecting them directly to the V-crossings on the connected turnouts at the opposite end. If the diamond-crossing tracks are on two separate sections, it gets more involved. Can you post a sketch or a .box file? edit: I've posted a sketch below. cheers, Martin. posted: 20 Jul 2019 19:24 from: Martin Wynne Hi Phil, I've made a quick sketch for a half-scissors: 2_201422_250000000.png It needs an interlock on the operation of the turnouts. Such as a 3-way switch for point motors, or a physical lock in the lever frame. cheers, Martin. posted: 20 Jul 2019 19:25 from: Phil O Hi Martin The layout is DC, I can put in sections to suit, I was currently thinking along the lines of the diamond being a stand alone section, but I'm open to all suggestions, I'm just having a senior moment and can't get my head around it. ...