An experiment in manipulating cloth using tension cables. The image above shows the cloth being pulled up with the maximum strength; while the image below shows one cable at full strength and the other with no pull.

Arduino Breasd board showing the wiring for this model. The potentiometer on the left is responsible for turning the system from lock to operate mode. The button switch to the left of that saves the ceiling height values, which, when switched to lock mode, keeps the ceiling height at those saved values.