A demo of the soon to be released mecanum wheel parts for the Infernal Robotics Model Rework: http://forum.kerbalspaceprogram.com/t...
These wheels allow for omni-directional motion when 4 or more are placed on a craft. In this case 8 are used and a kOS script is running to allow WSAD+QE inputs to drive the craft around.
This is an extension of the older version I previewed in this video: • KSP Mecanum Car