Before you convert CAD to Gerber, you must download EasyGerb,a plug-in for AutoCAD.
1.Enter the "_APPLOAD" command.
2.Load corresponding version.
3.To start EasyGerb Type (at the command prompt): "EasyGerb"
4.Default setting.
5. Choose the area.
6.Export Gerber .
7. Place an online order on PCB Instant Order
Since EasyGerb is a plug-in for AutoCAD, it must be loaded into the AutoCAD environment before it can be used. Loading is a one time process. The next time you run AutoCAD, EasyGerb will automatically load itself. Here's an online movie showing how to quickly load EasyGerb into AutoCAD, configure EasyGerb, and convert to Gerber. Youtube video
