Need help w/ IGES to Sketchup

Hey folks, I’m really not sure if this is the best place for this, if not please redirect me. I use Sketchup to render general concepts as a hobby mostly. I’ll have an idea, sketch it up, make something close. For what I do I don’t need to be exact.

I belong to a Facebook group for folks that like odd aircraft and I was shown a file that is IGES and want to I,port it to Sketchup so that I can put one of those fancy 3D links from the warehouse on our group page.

After researching this topic I seem to find a lot of things to pay for with many comments that it doesn’t work.

Soooo I was wondering since this is the only time I will ever need to interact with this type of file, is there anyone willing to import this and upload the models to the 3D warehouse and give credit to NASA prandtl-D team?

I can get al or red to approve if needed. The 3 files are public info and are linked on the ama website here:


Here is what I was able to come up with. I imported the IGES files into AutoCad, converted the surfaces (they couldn’t be imported into SketchUp) to meshes, exploded them into 3D Faces and imported the resulting DWG into SketchUp. There might be other ways to achieve this as well.At first sight the result needs some cleanup, and I am totally uncertain about the scale.
oml_prandtl3.skp (288.8 KB)
p2_oml.skp (280.1 KB)
oml_prandtl3_0.skp (290.6 KB)


I had a second go, this time with Rhinoceros. Open IGES, export as SKP. These look IMO better - AutoCad’s mesh conversion was quite rough in comparison. Again, still some cleanup to be done (reversed faces, for instance)
p2_oml-2.skp (1.7 MB)
oml_prandtl3_0-2.skp (2.2 MB)
oml_prandtl3-2.skp (2.2 MB)

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public obviously but their ToU appear to deny an unapproved redistribution…

I saw this part of their TOU

No Protection for User Content

If a user of the AMA provides content, materials or information to the site, such submissions shall be deemed to be non-confidential and placed in the public domain by the user. The AMA has no obligation of any kind with respect to such content, materials or information and is free to reproduce, use, disclose and distribute it to others without limitation. The AMA is free to use any ideas, concepts, know-how or techniques contained in the submissions for any purpose whatsoever, including but not limited to developing, manufacturing, marketing and distributing products and services incorporating such ideas.

I’d love to give credit to those that created this. This list was supplied by Albion bowers who holds the patent for the concepts that led to this final design of the Prandtl-D. He is personally aware of what I’m doing here on this site.

Albion Bowers
Permanent members: Red Jensen, Justin Hall, Derek Abramson, Dr Oscar Murillo, Dave Berger. Honorable mentions: Dr Christian Gelzer, Brian Eslinger, Russell Lee, Geoff Steele, Dr Rick Howard, Paul Herrick, Reinhold Stadler, Ivo Zell, Marko Stamenovic, Loren Newton, Matt Moholt, Deborah Jackson, Rebecca Richardson, John Bodylski (Johnny Bee), Joyce Le, Golda Nguyen, Nicki Reid, Stephanie Reynolds, Steffi Valkov, Victor Loera (Waldo Valkov), Brian Plank, Kira Hedrick, Lydia Hantsche, Noah Edwards, Dr Paul Yoo, Dr Ben Martins, Dr Edward Udens, plus about 100 other students and interns. And the patience and understanding of many, many others including the Director at our place David McBride and the Director of Research and Engineering Brad Flick. I also get help from the internship coordinator, Rebecca Flick as well. Many, many others, Dr Sam Batarseh, Mike Butros, Dr Geoff Spedding, Dr Tyler Clinkaberry, Dr Kyle Van Houtan…

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This worked great, thanks. In the end I simply selected the “skin” copied to a new file and saved. Made it clean as a whistle. Good enough for my purposes anyway.

If anybody puts this through a 3D printer please let us all know, we’d love to see this

Thanks so much

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