Get formal training and education in CAD

Many users of computer-aided design learn the art and how to use specific programs in classes working toward a college degree. Although ideal, this is not the only way to learn CAD. Take a single class from a technical school or community college. You can also get books and manual or learn online.

I recommend: Teach yourself CAD with the help of CAD Digest , or learn online at GBCCadd.com.  

Build up a CAD services portfolio

A portfolio is simply examples of your work organized into a single user-friendly format such as a book or a slideshow. It may help CAD designers to have both a traditional hard copy portfolio in addition to an electronic one. Many employers prefer a hard copy, but an electronic portfolio can showcase your technical skills as well.

I recommend: Use Carbonmade or BluentCAD to create an online portfolio.

Buy CAD software

There are many computer aided design software programs to choose from; they vary in price, specialty, graphics and ease of use. There are programs providing designs as simple as two-dimensional drawings, and there are much more in depth graphics-rich programs. Most of the leading ones offer free trials to try before you invest.

I recommend: Try VectorWorks, Adobe Acrobat 3D, CAD Creations or Designcad 3D Max, which are some of the popular computer aided design software packages. 

Have a strong online presence in the computer aided design world

If building and maintaining your own professional website is not a realistic option, take advantage of the many freelance websites out there to post your profile. Some allow you to showcase your work in a portfolio-like setting. Post a resume, contact information and your fees.

I recommend: Set up profiles on Guru.com, Elance.com, CADground.com and iFreelance.com.