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I'm assembling a scene with a big mandala inside a 'walking labyrinth' in a hall that's 10 metres internal, so ~12 metres roof-span. <br /> <br /> Hunted around, found a nice big truss. It was so poly-heavy, I'd have to run it through a de-polymeriser. <br /> <br /> Hunted further, found a low-poly truss. snag was the object had two extra boxes hiding part of span. <br /> <br /> I've had weird results from my old 2D/3D TurboCAD, but my recent acquisition of recent 2D version, which loaded an updated bunch of C-Net stuff <b><i>seems </i></b>to have rejuvenated it. <br /> <br /> So, I killed off the extra boxes, managed to 'Boolean-add' all the truss sections into one object, the fixing plates into another. <br /> <br /> Snag was TC promptly scrambled the OBJ export... <br /> <br /> I tried several work-arounds, finally used free UV Mapper Classic to map the truss, save template and re-save a matching OBJ. But this now had only one (1) material zone. Some more experimenting using free Irfan View let me paint template passably. <br /> <br /> It's not great, but it will do, and I can save a lot of resources by 'duplicating' it down the length of hall... <br /> <br /> I'll have to check design details for truss spacing and wind bracing... <br /> <br /> So, the truss... <br /> <br /> <a href="https://www.posetteforever.com/files/posted_images/680/truss12m01.jpg" target="_blank" title="Click to open image in new window"><img src="https://www.posetteforever.com/files/posted_images/680/truss12m01.jpg" alt="Image" width="400" title="Image" /></a>