Google Sketch can import dxf
take the version 6 it's free
http://www.brothersoft.com/downloads/sketchup.html

or you can also export directly from Moi in skp format (sketchup)
And inside sketchup ask to show only structure (SelectionToy by Thomthom)
http://forums.sketchucation.com/viewtopic.php?t=14975

Thanks Michael,
I tried and it works, only problem I need an hidden line drawing otherwise to messy. However, I found it a useful tip.

Thank you Frenchy as well, I am sure with Sketch Up is going to works, not sure about the free use of the software for commercial purpose, there is an endless debate on the web.

Hi Matteo, I do plan on working on a hidden-line drawing mechanism for MoI but currently you would need to use some other software to generate that for you.

One pretty inexpensive option for doing that is ViaCAD:
http://www.punchcad.com/c-12-consumer-cad.aspx

- Michael

Hi Michael, looking forward for the hidden-line drawing mechanism.

Thanks for the link, very good price and also it also serve my purpose with the layout/template. I will have a look at that. Thank you again.

< not sure about the free use of the software for commercial purpose,
of course the free version of Sktechup is not for commercial use ;)

I think Sketchup Free version is licensed for commercial work.

http://forums.sketchucation.com/viewtopic.php?f=79&t=20842&p=175544&hilit=eula#p175544

not sure that was in 2009 ;)
Now it's
Google SketchUp
Home/Personal Use

Google SketchUp Pro
Professional Use

look the story ;)
https://groups.google.com/a/googleproductforums.com/forum/#!category-topic/sketchup/sketchup/nZl7g5rKW-0