Re: CAD programs

"The Natural Philosopher" <a@[EMAIL PROTECTED]
> wrote in message 
news:1212304001.15070.0@[EMAIL PROTECTED]
> Robert Reynolds wrote:
>> I've been looking for a CAD program for creating model plans.  I 
>> downloaded a few free ones to see which features I like and which ones
I 
>> don't like.  I've noticed that circle, arc and ellipse are very common 
>> features, but I haven't seen a program yet that will do the complex 
>> curves required for drawing airfoils.
>>

I use devcad LE (devcad.com)  and I'm going to up it to the pro version. 
Easy, intuitive and can im****t a jpg/gif/tif/bmp as a 'background layer'. 
You can then tell the program the real dimensions by referencing any 2 
points and giving it a dimension.Then you can draw over the top of it to 
produce DXFs.( via ex****t.) Natively it produces DCIs. Only missing thing
on 
the LE version is 'draw // line' but is in the pro version. Very similar
in 
look and feel to AutoCAD .
For wing profiles, try profili. That will build complete wing rib sets and

has lots of rib profiles.