... in the rails. I'll delete the existing slip roads and redo them. Many thanks Charles posted: 18 Apr 2013 16:49 from: Charles Orr Hi Martin I think that this is the build candidate. What do you think? Best regards Charles Attachment: attach_1592_2196_Slip_C10_Final.bo x 303 posted: 18 Apr 2013 18:10 from: Martin Wynne Hi Charles, Looking good. Strictly speaking, you didn't move the switches quite far enough, so that the switch points (blade tips) are not fully supported on the timber: 2_181259_070000000.png The points should be supported on the slide chair, which in turn must be fixed to the timber, so in practice the middle points (blade tips) need to be about 2" inside the outer edge of the timber. The outer points will be a little further back because of the equalizing angle of the timber. To avoid re-doing all the rails, you could instead widen that timber to 14" and move it by about 1" using the shove timber functions. Unless you have a specific prototype ...