several embodiments of a wobble plate motor include a disc mounted on a bent shaft . driving the wobble plate so it revolves on a flat base causes the bent shaft to rotate and drive a generator or other work consumer . the wobble plate may be driven by a fluid stream impinging on the plate or by a blade assembly in a path of fluid movement . in one embodiment of a bladed motor , a shroud may direct the fluid stream so it more efficiently cooperates with the blade assembly .