Abstract
In the field of RoboCup Middle Size League, Omni-directional Mobile Mechanism is very important for moving and dribbling.We improved conventional Omni-directional Mobile Mechanism for reducing vibration, and moving smoothly.Thus we performed performance test of Dead Reckoning vibration and error for new Omni-directional Mobile Mechanism.In this report, we introduce the new Omni-directional Mobile Mechanism and as a result of performance test.