When you move the Spring roll winding, twisting, and when spring will loosen the wheel will be broadcast through main force has been sent to the ball out of shapeYour legs will be swinging from the strength, there is a movement by turning point and rear axle gear, which is central to the work of other parts of the arm movement, it will be pushed out of a beam tilting forceand push the pace of the movement
so, from the winding mechanism of the system, so they can move robot body rocking back and forth into the rhythm and balance right and left.
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