... need to be closed otherwise you would have to stitch all the objects neatly together to form a continuous surface. It seems to be OK to have closed objects that intersect one another. I'd have thought that would create problems too but it seems to work. Re the DXF import, I don't mind at all if you can find a better way to do it. Cheers, Andy posted: 6 Aug 2018 22:13 from: Martin Wynne We now have some outer jaws on the S1 chairs. Gold-plated: 2_061704_070000000.png Notice the random key positions. There should be a corner radius around the top of the jaw, but I think I'm going to draw a line at this. I've used as much of the REA drawing as seems reasonable. I'm hoping that the 3D printer will smooth out some of the sharp angles: 2_061707_200000000.png Now for the inner jaws, L1 chairs, slide chairs, slab& brackets... Martin. posted: 6 Aug 2018 22:22 from: Andrew Barrowman Martin Wynne wrote: Now for the inner ...

... switched off? Hi Phil, There isn't really such a thing as "the chair positions". It's a complex subject, and varies with the different prototypes and periods. I do have an ongoing, but currently stalled, project to show REA bullhead chairing on the 2D templates (and hopefully also GWR): 2_161458_330000001.png 2_301200_590000000.png 2_301256_010000000.png It's a long way from being ready, and got more complex after I obtained a 3D printer -- I'm hoping to get Templot to export the files needed for direct 3D printing of track. 2_061704_070000000.png Unfortunately I don't get much time to work on it, my computer time being mostly taken up in supporting the current Templot functions for users. For example I recently spent several days on a re-write of the make diamond-crossing at intersection function. So don't hold your breath for chairing in the DXF any time soon. You might like to look at Andy B's work on adding chairing to Templot's DXF files: topic 2734 (The first few pages are from 2016 and a bit out-of-date) ...