... used to construct my sample, can be equally used to produce curved scissor formations that exhibit aligned switch blades on both inner and outer curved roads. It just means there is a number of further manipulations which are needed at certain steps in the procedure to achieve the correct formation. This is why I am re-writing my help guide, in order to cover all requirements whatever the formation needed. Any how, well done Len, darn good effort your well on the way now. All the best, Brian Nicholls. 1853_191059_090000000.png posted: 19 Sep 2012 16:38 from: Brian Nicholls Hi Len, Just a further point I meant to mention in my reply message posted just above, regarding the joining of the wing rails to the tongue rails is of course, that this may also cause problems with the wiring, in particular how you need to isolate the parts and their associated wiring. Just food for thought !! All the best, Brian Nicholls. posted: 19 Sep 2012 17:53 from: Brian Nicholls Len Cattley wrote: ...