Hello, community. I’m trying to use Sweep1 ( to spin an open curve around a closed one) to get a desired shaped object, and I got it (an open Polysurface). At a glance, it seems like one whole Polysurface but when I click Shift+Ctrl+LMB it consists of four sub-Polysurfaces. I want it to be an entire Polysurface since I want to create UV curves from that Polysurface.
Of course, I can create the desired object in other ways, but I wonder what causes this separation when I use a Sweep1 tool. Any suggestions?
Thank you.
Sweep1_sm.3dm (224.1 KB)
I believe it is because your rail is degree 2. If you tick the Refit rail option in Sweep1 you should get a single surface. Better, if you rebuild the rail to degree 3 first you will get a single surface without needing to tick the Refit option, and it will be simpler than the surface from the refit approach.
HTH
Jeremy
Hello - I would just make a Revolve here, I think.
-Pascal
Hi Jeremy,
I tried both the methods you pointed out and, both of them worked well. There was only a slight difference in the Isocurves. I got a much clearer surface when I used the revolve command as Pascal mentioned below.
Thank you.
Thank you, Pascal.
It worked well.
Check out RailRevolve too if you are not familiar with it 
Another handy tool. What I like most in Rhino is that we can approach things in many different ways to get the very same result. We are not limited to a single tool. Being a little creative is a must )).
Thx Holo.
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