How do I create a flat sheet pattern of a 12" round to 12x24" rectangle lofted boss base?
Use a sheet metal lofted bend.
After much trial and error I discovered that a 'sheet metal' lofted boss base requires a narrow gap where the butt weld will be. A standard lofted boss base creates a continuous object without a weld joint. Also, because of the multiple small angle bends, the sheet metal bend radius needs to be set very tight or the pattern creates double bend lines.
Unless it's a cast/molded piece, there must be a seam somewhere on the part.
If you have SW Premium, you can try surface flatten, but again, an edge will be needed.
How do you intend to get a flat pattern from a part with no seam?
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