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Old Mar 21, 2005, 06:56 PM
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Wing Modeling Help For Cnc


I am tring to do drawings for a wing so I can CNC a mold and having a difficult time doing so... I wanted to post to see if anyone can offer help, advice etc. The wing has 3 airfoils with an elliptical planform and this is why I am having difficulty.

All help is appreciated......

Thanks

Tom
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Old Mar 21, 2005, 07:01 PM
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I just saw a software package that does this... Compufoil?
Old Mar 21, 2005, 08:30 PM
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Are you using Autocad or something similar? If you are, can you import the airfoils and then use them as a wire frame to overlay a skin? Haven't done it before, but I used this technique in Microstation to draw a fuse a couple of years ago.

Andrew
Old Mar 21, 2005, 09:50 PM
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It would be easiest to do this in a 3d cad package like proE. You can do it in autocad but the wing will not be as easy. What cad experience do you have?
Mike
Old Mar 21, 2005, 10:17 PM
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hey tom
send me the profiles and i will try and put them into solidworks
timmyklus@hotmail.com
later
tim
Old Mar 22, 2005, 12:17 AM
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An eliptical planform with be fun to solid model

TFLG
Old Mar 22, 2005, 01:32 AM
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i know but i think it would be fun to try.....i just got done with a college class in solidworks and i have learned alot about the program.....shouldn't be too hard.....i think

later
tim
Old Mar 22, 2005, 07:24 AM
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Tim - I will send it to you in a little while.

I have Rhino 3D (latest version), AutoCad, Maxsurf,Compufoil, so you can see its not that I do not have experiance... Its hard to do. I actually did a very nice on last night but need to check it for accuracy. The tip is not what I want .........

Tom
Old Mar 22, 2005, 01:07 PM
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Increasing my carbon footprint
i have done quite a bit of lofting in solidworks and i think if you take the airfoil shapes and loft them with guide curve paths i think it can be done. if you can send me the outline you want too.

later
tim
Old Mar 22, 2005, 02:29 PM
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The tip is always the problem when modeling an elliptical wing. You end up having to kluge the tip somehow. And of course the tip of an elliptical wing is the most important part of the wing. Mess it up an you can get a rather nasty behaving wing. You have the right idea about how to model it though!

TFLG
Old Mar 22, 2005, 03:40 PM
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You should try Catia, I hear it's better software for aircraft structures, i.e airfoils and such curves.
Old Mar 22, 2005, 08:13 PM
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Here is a quick one from Rhino:


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