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A.R.D.D.
"The ARDD (The Automated Repair On Demand Device) is a system that works throughout the entire ship. There is a mulittude of sensors that all report back to a main computer that is drawn. The sensors are magnetic sensors that detect sudden changes in the field they cover, which the computer then decides wether or not is damage. If the computer detects damage, it will alert all Astronauts on board and 3D print the part needed. It is mostly composed of plastic fibers."