https://i.ytimg.com/vi/OVTOSOKpx6I/hqdefault.jpg In this tutorial, you will learn how to create a globoid worm shaft and its mating gear wheel in Blender 3D, and test their compatibility using Blender’s Rigid Body Physics engine. For more free tutorials and 3D models, and to make a donation, please visit www.otvinta.com. source