... 14 Apr 2015 10:15 from: madscientist Have u a link to that method What Iike about the method I linked, is that all holes are under the sleeper posted: 14 Apr 2015 14:04 from: John Palmer What I like about the drive arrangement shown in this thread is the absence of any bending moment applied to the drive. What I like less is the lost motion liable to be imparted by the use of what appears to be an undersized hinge pin, as shown in the accompanying doctored image:2129_140850_300000000.jpg Unless the movement imparted to the under-board drive stretcher is such as to bed each switch firmly against against its respective stock rail when the switch is thrown, there will be potential for the switch tongues to 'flap about' due to this lost motion. If this is 4mm: 1' trackwork, I would estimate that the lost motion on each pin is of the order of .3mm. Whilst I have reservations about Howard Bolton's method of connecting switches by means of a functional scale stretcher and using this to drive the ...