GEARCAM

GEARCAM app lets you draw 2 D gears in Auto-Cad very easily by just entering the gear dimensions of your choice or calculated values. The drawing can then be converted to a G-code file by using “GCODECAM” app to cut the gear in a CNC milling machine.

GearCAM:https://apps.exchange.autodesk.com/ACD/en/Detail/Index?id=appstore.exchange.autodesk.com%3agearcam_windows32and64%3aen

Standalone version of gearCAM is now available. You can download AutoCAM2D from this link and GearCAM is a module in AutoCAM2D. 

http://autocam2d.com/downloads

For more details: GearCAM Help