... tested that. The most complicated chairs are those around the crossing but I've managed to create a smallish number of components that make it fairly simple to generate crossings for a wide range of crossing angles. You might notice that the key side of the chairs is a simple vertical surface. The head and foot of the rail bear on that surface (holding it vertical) while the inside jaw presses the rail against that surface while constraining vertical movement. (That's the theory, but my experiments do seem to support it.) 2983_250031_150000000.gif posted: 25 Aug 2018 12:58 from: Nigel Brown A thought. What sort of adhesive would be appropriate for fixing 3D printed chairs to sleepers? I tend to use plastic sleepers myself. In a different application I have some 3D printed FED bits and am finding it difficult to find out what is the best glue to use. posted: 25 Aug 2018 13:24 from: Stephen Freeman Hi, Super Glue of some sort I would think. It won't be too long before I dip my toes in ...