... of the photo just below the moving elbow. The support rail stops just short of the elbow but leaving only a 1mm gap for the wheel flange to squeeze past. theoretically this should be enough but I'm not sure my track making skills are consistent enough to make that work. When I've assembled the switches for the other end of the slip and I can run my test wagon through I'll know whether I'm better than I thought, or it's time to take them out and shorten then a tad to open up the gap. 2787_071823_520000000.jpg, Looking at this photo John I'm wondering if I've missed a trick( as you were saying in your previous post) in not using brass slide chairs more, either pinned to the timbers or soldered to copper paxolin timbers down the middle of the slip where I've put brass strips. It would have been neater and stronger to use them rather than brass strips that have to be shortened and half chairs glued in place to disguise their presence. Live and learn but I'm not about to take it all out and start again ...