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I’m using a decade old copy of Autocad R14 for my own
homebuilt design, you may be able to find old copies, works great for 2D stuff.
As for 3D the best budget system I’ve seen is Alibre
starts a $99 and goes up to a grand that would give you full
FEM and CAM. I’m using the full blown package
on some robotics consulting work.
As for printing on my project I set up a grid that fits a
8.5 x 11 on the part I would like to print then I just send it to the printer, I
have some alignment features and a long axis line or chord line on the grid so I
can cut and tape it all together. The printer is accurate to with in .030 witch
is more then enough for airfoil work. this is by far the cheapest way to go.
If your going to pay someone to print your airfoil I would
highly recommend giving them a pdf, note: plot files a notoriously a giant pain in the….
For both users and the print shop.
You can download a free & legal pdf creator at http://sourceforge.net/projects/pdfcreator/
You just select the pdf creator instead of your printer in
the print setup. The settings will confirm the size. Make sure you have the
scale set to 100% and the paper size is right i.e. arch D for a D size print. Etc…
I would have some gauge points on the cad file as far apart
as you can get so you know you are getting a 1 to 1 print.
Hope this helps,
Technical Counselor 5426
Note: I drive Unigraphics NX6 / Teamcenter for my full time