Can someone please explain to me, why it is not possible to create a new sketch on "Surface-Offset3 and Surface-Fill2" ?? while "Surface-Offset2" allows to create one??
If you use Planar Surface instead of Surface-Fill2 you will be good. Just roll back - Right click one of the edges - Select Open Loop - and finally Planar Surface.
I'm at home now and don't have SW here, so iI can'topen your file, but it's guess those surfaces aren't flat.
yes, that thought crossed my mind at the moment I pressed "ask it" button on forum:D And I think that your guess is the right one..:)
Tyvm Thomas, it works.
But can you simply explain why is that?? I've selected all the same edges, so why surface fill doesn't make the same final surface as planar surface??
I am not a SolidWorks programmer but anyway.
Planar Surface is inherently planar, Fill Surface is anything else also. I believe that whenever Fill Surface encounters a curved edge it starts its calculations assuming a not planar solution. Planar Surface will check if a plane can be coincident with all edges, and if it succeeded this will be the "base" of the surface.
Sometimes I have a similar problem and Planar Surface fails, and says the edges are not planar though I believe them to be. In such a case I create a plane through 3 points or one of the edges, create a sketch, use Convert Entities. Create Planar Surface and Knit. The tolerance acceptance of Knit will solve my problems.
Ok, thanks again, this explanation is far enough with my poor Solidworks and surface-modeling knowledge and skills..:)
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