This is a basic setup for the skin modifier that was recently added in the trunk by Nicholas Bishop, follow this link to watch a tutorial and get a build that can use the skin modifier; http://blenderartists.org/forum/showthread.php?251406-Skin-modifier-in-Trunk!-Tutorial You can easily create base meshes as well as rigs with this tool, have fun. This is not for Blender 2.63 but I can't change the version at the moment, the skin modifier will be included in 2.64