Hobbyists with an interest in omni wheels should consider purchasing Singularity Robotic’s Omni Wheel Starter kit.
With three omni-directional wheels, this mobile robot kit can move in any direction and at any angle without rotating in advance. The wheels are powered by DC motors and use optical encoders, to push speeds of up to 0.2 m/s. Three ultrasonic sensors add to the Arduino-based fun.
The bot’s red chassis is made of an aluminum alloy. A 12 Volt, 3500mA lithium battery powers the whole thing, and a charger is included with the kit.
You can buy the 3WD Omni Wheel Starter Mobile Robot Kit on the Singularity Robotics Website.