Hi to all,

eMachineShop is a simple 2D program
which can draw metal profiles including
gears in mm and inches

Before you export it you must select the shape
and press the machine icon or F5
I imported an iges file in Moi with success

It can export iges,dxf and stl

Here is the link:
http://www.emachineshop.com/machine-shop/Download-Free-CAD-Software/page17.html

Have great fun,