In a rigidly ordered world, one dominated by predictability and consistency, many tubular projects are straightforward. For any given assembly, the bill of materials usually lists 90-degree angles and consistent lengths. Whether cutting or coping, the prep work and the welding go like clockwork. However, even in this world, some projects aren't straightforward. Designs based on curves, whether they are tight-radius bends or gently sweeping arcs, usually leave fabricators scratching their heads. Miter cutting or coping components, and bracing them to an assembly for tacking, can be vexing under the best of circumstances.
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