Expandable Collapsible Ball

A fun project that simply snaps together to create a ball (based on dodecahedron geometry) that will smoothly expand and collapse in a mesmerizing way. Enjoyable to use in your hands, and strong enough to even toss around.All parts are designed so that they can be printed without supports or brim, and you'll need to print 60 arms, 20 three-way connectors, and 12 five-way connectors to assemble. The version shown in the pictures uses the 6 cm arms, which creates an expanded shape around 25 cm