EasyGerb (AutoCAD to Gerber)
EasyGerb (AutoCAD to Gerber) 4.1.2 can be downloaded from our website for free. The program is included in Photo & Graphics Tools. This software is a product of Numerical Innovations, LLC.
From the developer:
A perfect solution for AutoCAD users who are looking for the easiest and most powerful way to output gerber files from their AutoCAD drawings. Simply appload EasyGerb ARX into your AutoCAD, select entities, and export them to gerber files. Runs on AutoCAD 2000 thru AutoCAD 2011, supports both 32-bit and 64-bit releases.
You may want to check out more software, such as GERBING Fotoalbum, ABC AutoCAD Import ShapeFiles or EasyGerb, which might be similar to EasyGerb (AutoCAD to Gerber).