Hello: I got a problem when I imported a IGES files generated from a CAD system. Since the curves in the file are not closed (i.e. the last points are not linked to the first one), I can only make a surface loft but not a boss loft. I intend to make a closed loft and hence determine the volume in the mass porperties window but fail. I hereby enclosed a iges contact with only 2 curves(layers) to arise the problem. How can I make a boss loft in this case? Thanks for your help. Sum
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