9 Replies Latest reply on Feb 18, 2017 10:13 PM by Paul Salvador

Surface loft and boundary

Laurent Martin Feb 18, 2017 11:35 AM

Hello,

I am trying to model a kitesurf fin using the surface feature and I have a few issues:

1./ When I apply the loft feature on on the profile, it doesn't include the two parts on the extremities. Is it normal?

2./ When I check carefully the loft surface doesn't follow properly the guide curve on the side (some small spaces remained unfilled). Why and how to solve this ?

3./ Considering loft doesn't close fully the surface, I try to use the boundary surface feature to complement the loft done and closing it on the extremity but I don't success to make this properly. How to do it ?

Thanks in advance for your answer.

fin.SLDPRT.zip 107.3 KB

Re: Surface loft and boundary

Dennis Bacon Feb 18, 2017 12:17 PM (in response to Laurent Martin)

I took a slightly different approach on the Laurent. It is done in one loft but using the arcs as guide curves.
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I will see if I can get you a 2014 file if you need it.
Edit:.. Perhaps this isn't the solution. I'm not a surfacing guy. I had left out your 3DSketch2 which was used as a centerline. When I try to add it, it fails. Paul Salvador?
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Re: Surface loft and boundary

Paul Salvador Feb 18, 2017 12:44 PM (in response to Laurent Martin)
Laurent,.. try using a boundary surface.. much better for this.. the only issue maybe the singular ends (0) of you are trying to apply thickness.
(lol.. hey Dennis.. just saw you post before I sent.. yes, the file attached is 2014)

fin-zxys.zip 96.3 KB
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- Re: Surface loft and boundary
  
  Dennis Bacon Feb 18, 2017 1:11 PM (in response to Paul Salvador)
  
  I'm looking at yours now. That was my first thought (boundary surface for the entire surface) but for some odd ball reason I couldn't manage it. As far as surfacing goes, for me its just like golf. Very frustrating and the harder I try the worse I get.
  
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  - Re: Surface loft and boundary
    
    Paul Salvador Feb 18, 2017 1:19 PM (in response to Dennis Bacon)
    
    You got sandtrapped with a Bogey Boundary?
    
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  - Re: Surface loft and boundary
    
    Laurent Martin Feb 18, 2017 6:49 PM (in response to Dennis Bacon)
    
    Same here. I try to use boundary surface but don't success to make it
    
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Re: Surface loft and boundary

Dennis Bacon Feb 18, 2017 1:03 PM (in response to Laurent Martin)
I was able to do this with a loft by ever so slightly moving outward the grip on the style near the end.
Since you didn't have that defined I thought maybe I could get away with it.

fin_db.SLDPRT.zip 108.6 KB
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Re: Surface loft and boundary

Mark Biasotti Feb 18, 2017 1:33 PM (in response to Laurent Martin)
Hi Laurent,

Paul's implementation is excellent, but I think sweep is also a great, and higher quality surface way to go for this situation?

fin-mab.SLDPRT.zip 172.4 KB
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Re: Surface loft and boundary

Laurent Martin Feb 18, 2017 7:02 PM (in response to Laurent Martin)

Seems I succeed to reproduce the fin zxys zip file and it works fine. It seems I didn't select properly the guide curves line. It was needed to select them as Open Group. How could I have had guess this ?
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- Re: Surface loft and boundary
  
  Paul Salvador Feb 18, 2017 10:13 PM (in response to Laurent Martin)
  
  ..yes, you would need to RMB (right mouse button,.. selectionmanager) for your gc's which are shared in the same sketch.
  ..btw, Marks sweep works very well since it looks like your sections scale along the gc's.. he went further with the profile and making it solid...
  ..I'll add a surface sweep as a ref..
  
  fin-zxys-swp.zip 138.1 KB
  
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