Sweet robot with mecanum wheels

John @ MAKE writes –

Remember the 3D-printed mechanum wheels I blogged a while ago? Well, maker ROB K636 built a cool mecanum bot powered by four battery packs, an arduino, screw shields and what looks like a motor shield. I really like how he created colored wheels using regular old Rit clothing dye. My question is, why use mecanum wheels other than for cool? Wouldn’t you want one wheel on each side of a square chassis to enable 360-degree movement? The way it is now, it seems like you could use regular wheels and achieve the same range of movement. (Note: the maker has generously shared the wheels’ .STL files on Thingiverse.)

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