Quote Originally Posted by typhoon_driver
that wouldn't be a walker as the legs have to support the entire body weight and if i read your idea correctly you are planning to have the machine drag itself along.

With spinning weapons you don't have to bother throwing huge amounts of weight in there. An 11kg disc sounds awesome but you are going to have to manufacture it, build the supports strong enough to contain it and build the drive train which for something that big would be too much to fit into a featherweight.

Any walking spinner would have to have legs that were incredibly strong especially if the disc is vertical to be able to survive the reaction forces from collisions. I could see the entire mechanism shattering in a single hit.
Both designs would move along on a couple of spring loaded pads (containing the magnets) which can be raised and lowered- when the disc hits its target the downward force would push the pads back into the body, thereby taking the impact on the bottom of the body.