A single tubular motor and spring system for angled, gravity drop, or horizontal shades up to 6 x 8 ft (183 x 245cm). As the motor in the cable take-up tube pulls the shade band across the opening, it creates resistance as it tightens the opposing spring in the shadecloth tube, providing shade band taughtness. The size and weight of the shade will determine if idler rollers, guide cables, and/or guide track are necessary.