This cup is designed as an expandable storage system optimized for a zero gravity environment. It is perfect for storage of tools and small objects. The overlapping rings can be pulled up to form a cup up to 4 times as tall as the print volume. After printing, the rings of the cup can be attached to the base which provides a solid footprint for the cup. This can be attached to a surface via tape or screws if desired. The Expandable Cup features a lid that can be slipped onto the top of the cup so the contents don't spill out. The rings can be pulled apart when separated from the base to allow for a thorough cleaning, as sanitation is very important in the space environment. This cup is the perfect system for compact storage and expandable space options.