
Alibre Design Express is a free CAD/solids modeling application making it a great alternative for those without a $1,000 or more to spend on such software. While is does not offer all of the features of the pay version, it is a very powerful application with a host of import and export capabilities. The software offers great video tutorials and help assistance. Beginning video tutorials can be found here following the “QuickStart Guide” link. Alibre is Windows-only and you can download a copy here.

Also, I ran across another 3d modeler over the weekend called CB Model Pro that looks promising and, for now, is also free. SolidWorks, the triple espresso-strength 3d design application, is creating CB Model Pro. CB Model Pro is quick and intuitive similar to SketchUp, but has some of the same limitations (precision, export capabilities, etc.). One of the best features, though, is the ability to model very organic shapes. It will allow exporting to a .stl file, making it compatible with the 3d printer. I plan to do a test model to print and see how well it works. I have done a test print with a model from CB Model Pro, and it works great. There is also the possibility of integrating Alibre Deign and CB Model Pro to get the best of both worlds. You can find CB Model Pro here. It is both Mac/Windows compatible and free while in beta testing.