Lofting Enigma

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 From:  TOM (SIRTOM)
8528.1 
When I try to simply loft the attached set of curves, the loft does not close
as wished to a Moebius band - I wonder why ?!
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 From:  futagoza (STEFAN)
8528.2 
Because the start and end points of the curves are rotated by 180 degrees?

You can undo the operation, then loft again, without "closed" checked and
then delete the curves and do at the open edges a blend, to obtain the
desired result.

Regards
Stefan
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 From:  TOM (SIRTOM)
8528.3 In reply to 8528.2 
I have done a blend, but it does not fit perfectly between the open ends,
thats why I would like to do a closed loft.
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 From:  futagoza (STEFAN)
8528.4 
Then try two lofts, which looks quite the same to me, like in my previous suggestion.

First loft the red lines and as second the ending red lines with the remaining blue lines and finally join.

But if you like to shell and fillet the resulting surface you will probably need solution one...



Regards
Stefan

EDITED: 24 Jul by STEFAN

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 From:  TOM (SIRTOM)
8528.5 In reply to 8528.4 
Yes, teh goal is to shell after.

So in general it is not possible to loft curves which are twisted around 180 degrees ?
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 From:  Michael Gibson
8528.6 In reply to 8528.5 
Hi Tom,

re:
> So in general it is not possible to loft curves which are twisted around 180 degrees ?

Sorry no that's not possible to do in a single loft - a closed loft and just closed surfaces in general cannot have a closing seam where the start and end are flipped from each other. You will need to make a model like that out of more than one surface instead of just one single surface.

- Michael
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 From:  futagoza (STEFAN)
8528.7 
Well, not like you want to have it, IMHO.

I also don't understand why you not use method one, i suggested, because it gives a better result
than solution two. Only problem might be filleting afterwards.



Regards
Stefan
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 From:  TOM (SIRTOM)
8528.8 In reply to 8528.7 
>>I also don't understand why you not use method one<<

Stefan, thank you zhat you insisted. When I first applied Blend to fill the
gap, the curvature of the gap was not blending completely smoothely with
the open ends. Thats why I posted my question looking out for creating
the entire loft as one. I had a look again and the filled gap seems to blend
perfectly now !
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 From:  futagoza (STEFAN)
8528.9 
Hi Tom,

glad that it works now for you!

Regards
Stefan
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