I am learning modeling and animation using Blender 3D. For a learning practice I have uploaded a file of something I am making. I have made a ball and chain in 3D now I want to make it swing like a pendulum using an armature. Does anyone know I could do this? Here is the file I am working on (requires 3D Blender installed) http://www.webboffin.com/ballandchain.blend 3D Blender is a free program so go down to their website to get it if you want it.