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Need help to create a wing in 3d using imported profiles.

    
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orrinade5398

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Registered: 2012-9-12

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 Need help to create a wing in 3d using imported profiles.
10-09-2013 03:08 . pm   |   View his/her posts only
I would like to know if there is anyone who can help me with the steps to build a wing in ZW3D.I have seen this video on how it is done in SolidWorks, I also want to build a mold of the wing.

http://www.youtube.com/watch?v=CEi-Qip70DI

If you could do it in steps that would be appreciated.

Thanks
Orrin

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Randy

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Registered: 2012-5-21

Message 2 of 6

10-09-2013 08:57 . pm   |   View his/her posts only
Wow that was a lot of steps in SW....just import in ZW, concatenate if needed then loft...maybe your imported file has issues.
Feel free to send and I'll take a look.

Regards,
Randy

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orrinade5398

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posts: 8

Registered: 2012-9-12

Message 3 of 6

10-09-2013 09:15 . pm   |   View his/her posts only
Hi Randy,

Thanks for the reply.
I haven't even tried it in solidworks, I only have Rhinoceros v4.
In Rhino it's fairly easy but I want to do it in ZW3d as this is the way I'd like to go in the future, plus there are a few things I don't like in Rhino(parametric and its slow).
I'll compile the foils and layout and will post them here as soon as I get to my PC at home.

Cheers,
Orrin

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orrinade5398

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posts: 8

Registered: 2012-9-12

Message 4 of 6

11-09-2013 01:50 . am   |   View his/her posts only
Post Last Edit by orrinade5398 at 2013-9-11 01:53

Hi Randy,I've added the file in DXF format.

Let me know if it comes out good, mine is good most of the way.

Next step is to make a mold.

Regards,
Orrin Test.zip (35.27 KB)

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Paul

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Registered: 2011-9-17

Message 5 of 6

11-09-2013 11:03 . am   |   View his/her posts only
Hi Orrin, ZW3D can eat this stuff even with poor curves ex where ever.
I have shown one solution with the info provided. but a number of others exist.
I have guessed where to split edges. This can make a difference to outcomes.

You don't need split section profiles and you can work directly off NACA foil data in a spread sheet.
ZW can suck in multiple profiles curve point sets in a single csv -delimited file which can be set up in the spreadsheet to produce all your curves! e.g you could build a spreadsheet wing modeller then do the solid modelling in ZW in a few clicks.

All you need is the point data for each cross section, if they are the same section, no camber changes etc, then you only need one section curve. and a couple drive curves.

I have worked with the dxf data raw, which produces poor results because the underlying curves are not tangent. The resuktant curvature disruptions are highlighted in the pic.
If you want tangent continuous surfaces you need good curves underneath.

Better - to complete a slpine as a single curve then split is later or use tangency constraints is multi curve/spline etc.

IMO The wingtip end termination is not realistic as transition to razor edge is always problematic.

FYI I've been there with SWx - it's not pretty.
GL_CurvatureIssues.jpg
2013-9-11 10:55


GL_WingFix.zip (227.62 KB) (file is 2013SpP1 32bit, you need ot finish the other side, close the edges and end to have a solid.)

Summary:
ZW3D will do anything you want - and GIGO.

Cheers - Paul

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orrinade5398

Newbie

posts: 8

Registered: 2012-9-12

Message 6 of 6

11-09-2013 04:47 . pm   |   View his/her posts only
Hi Paul,

Thanks for the help,
I've still got allot to learn.

Cheers,
Orrin
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