surface is always open even with simple line and extrude !! is it normal ?
solidworks 2014 x64 sp1 - windows 8.1 x64
Yes this is correct behavior. Create a rectangular extrude, add surfaces on both open sides, knit all the 3 surfaces and then check.
You can also select to cap the far end for a single direction extrude, which saves a feature. If you extrude in both directions, you can cap both ends, but then for some reason it will become a solid. I wish that it would not do that and I wish that I could cap the start end for a single direction extrude.
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